Sequences
392,541 sequences
- a(n+1) (n >= 1) is smallest number > a(n) which is the sum of cubes of distinct earlier terms.A019511
a(n+1) (n >= 1) is smallest number > a(n) which is the sum of cubes of distinct earlier terms.
- Expansion of 1/((1-4*x)*(1-7*x)*(1-8*x)).A019512
Expansion of 1/((1-4*x)*(1-7*x)*(1-8*x)).
- Erroneous version of A307102.A019513
Erroneous version of A307102.
- a(n) = (n!)^3 + 1.A019514
a(n) = (n!)^3 + 1.
- a(n) = 1 + 0!*1!*2!*...*n!.A019515
a(n) = 1 + 0!*1!*2!*...*n!.
- Delete all 2's, 3's, 5's and 7's from the sequence of nonnegative integers.A019516
Delete all 2's, 3's, 5's and 7's from the sequence of nonnegative integers.
- Erroneous version of A031976.A019517
Erroneous version of A031976.
- Smarandache-Wellin numbers: a(n) is the concatenation of first n primes (written in base 10).A019518
Smarandache-Wellin numbers: a(n) is the concatenation of first n primes (written in base 10).
- Concatenate odd numbers.A019519
Concatenate odd numbers.
- a(n) is the concatenation of the first n positive even numbers.A019520
a(n) is the concatenation of the first n positive even numbers.
- Concatenate squares.A019521
Concatenate squares.
- Concatenate cubes.A019522
Concatenate cubes.
- Concatenation of Fibonacci(1) through Fibonacci(n).A019523
Concatenation of Fibonacci(1) through Fibonacci(n).
- Duplicate terms of A007908.A019524
Duplicate terms of A007908.
- Poincaré series [or Poincare series] for depths of roots in a certain root system.A019525
Poincaré series [or Poincare series] for depths of roots in a certain root system.
- Poincaré series [or Poincare series] for depths of roots in a certain root system.A019526
Poincaré series [or Poincare series] for depths of roots in a certain root system.
- Poincaré series [or Poincare series] for depths of roots in a certain root system.A019527
Poincaré series [or Poincare series] for depths of roots in a certain root system.
- Poincaré series [or Poincare series] for depths of roots in a certain root system.A019528
Poincaré series [or Poincare series] for depths of roots in a certain root system.
- Sum of a(n) terms of 1/sqrt(k) first strictly exceeds n.A019529
Sum of a(n) terms of 1/sqrt(k) first strictly exceeds n.
- Smallest number m such that m^m is divisible by n.A019530
Smallest number m such that m^m is divisible by n.
- Let I_c(n,d) be maximal number of independent sets in d-regular simple connected graphs with n vertices; sequence gives I_c(2n,3).A019531
Let I_c(n,d) be maximal number of independent sets in d-regular simple connected graphs with n vertices; sequence gives I_c(2n,3).
- Numbers k such that Fibonacci(k) divides k!.A019532
Numbers k such that Fibonacci(k) divides k!.
- Let I_c(n,d) be the maximal number of independent sets in d-regular simple connected graphs with n vertices; sequence gives I_c(n,4).A019533
Let I_c(n,d) be the maximal number of independent sets in d-regular simple connected graphs with n vertices; sequence gives I_c(n,4).
- Let I_c(n,d) be the maximal number of independent sets in d-regular simple connected graphs with n nodes; sequence gives I_c(2n,5).A019534
Let I_c(n,d) be the maximal number of independent sets in d-regular simple connected graphs with n nodes; sequence gives I_c(2n,5).
- Let I_c(n,d) be the maximal number of independent sets in d-regular simple connected graphs with n nodes; sequence gives I_c(n,6).A019535
Let I_c(n,d) be the maximal number of independent sets in d-regular simple connected graphs with n nodes; sequence gives I_c(n,6).
- Number of length n necklaces with integer entries that cover an initial interval of positive integers.A019536
Number of length n necklaces with integer entries that cover an initial interval of positive integers.
- Number of special orbits for dihedral group of degree n.A019537
Number of special orbits for dihedral group of degree n.
- Triangle of numbers T(n,k) = k!*Stirling2(n,k) read by rows (n >= 1, 1 <= k <= n).A019538
Triangle of numbers T(n,k) = k!*Stirling2(n,k) read by rows (n >= 1, 1 <= k <= n).
- Number of steps from one unit vector to next in linear quantum cellular automata.A019539
Number of steps from one unit vector to next in linear quantum cellular automata.
- Number of steps from one unit vector to next in linear quantum cellular automata.A019540
Number of steps from one unit vector to next in linear quantum cellular automata.
- Number of steps from one unit vector to next in linear quantum cellular automata.A019541
Number of steps from one unit vector to next in linear quantum cellular automata.
- Number of steps from one unit vector to next in linear quantum cellular automata.A019542
Number of steps from one unit vector to next in linear quantum cellular automata.
- Number of steps from one unit vector to next in linear quantum cellular automata.A019543
Number of steps from one unit vector to next in linear quantum cellular automata.
- Squares whose digits are squares.A019544
Squares whose digits are squares.
- Cubes whose digits are cubes.A019545
Cubes whose digits are cubes.
- Primes whose digits are primes; primes having only {2, 3, 5, 7} as digits.A019546
Primes whose digits are primes; primes having only {2, 3, 5, 7} as digits.
- Squares which are a decimal concatenation of two or more squares.A019547
Squares which are a decimal concatenation of two or more squares.
- Cubes formed by concatenating other cubes.A019548
Cubes formed by concatenating other cubes.
- Primes formed by concatenating other primes.A019549
Primes formed by concatenating other primes.
- a(n) is the concatenation of n and 2n.A019550
a(n) is the concatenation of n and 2n.
- a(n) is the concatenation of n and 3n.A019551
a(n) is the concatenation of n and 3n.
- a(n) is the concatenation of n and 4n.A019552
a(n) is the concatenation of n and 4n.
- a(n) is the concatenation of n and 5n.A019553
a(n) is the concatenation of n and 5n.
- Smallest number whose square is divisible by n.A019554
Smallest number whose square is divisible by n.
- Smallest number whose cube is divisible by n.A019555
Smallest number whose cube is divisible by n.
- Dimension of space of Jacobi forms of weight 4 and index n.A019556
Dimension of space of Jacobi forms of weight 4 and index n.
- Coordination sequence for G_2 lattice.A019557
Coordination sequence for G_2 lattice.
- Coordination sequence for F_4 lattice.A019558
Coordination sequence for F_4 lattice.
- Period 5: repeat [4, 4, 6, 6, 6].A019559
Period 5: repeat [4, 4, 6, 6, 6].
- Coordination sequence for C_4 lattice.A019560
Coordination sequence for C_4 lattice.