43560
domain: N
Appears in sequences
- Even pentagonal pyramidal numbers.at n=33A015224
- If there were a 9-dimensional unimodular lattice with minimal norm 2, this would be its theta series; however, no such lattice exists.at n=10A032800
- Number of distinct languages accepted by unary DFA's with n states.at n=11A059413
- Numbers occurring twice in A068627.at n=30A068628
- a(n) = 4n^3 + 2n^2.at n=21A089207
- Triangle T(n,k) read by rows, where T(n,k) = number of times the determinant of a real n X n (0,1)-matrix takes the value k, for n >= 0, 0 <= k <= A003432(n).at n=17A089478
- Numbers n where either n or n+1 is divisible by the numbers from 1 to 12.at n=12A131662
- A certain partition array in Abramowitz-Stegun order (A-St order), called M_3(6).at n=21A134278
- a(n) = tau_{n}(n) = number of ordered n-factorizations of n.at n=43A163767
- a(n) = the product of all distinct positive (nonzero) integers that, when written in binary, occur as substrings in the binary representation of n.at n=21A165153
- Smallest k such that the partial sums of the divisors of k (taken in increasing order) contain exactly n primes.at n=15A187822
- Numbers with prime factorization p*q^2*r^2*s^3 (where p, q, r, s are distinct primes).at n=14A190109
- Number of nX2 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=37A200984
- Non-palindromes whose squares are in A066531.at n=10A206642
- Triangle, read by rows, where T(n,k) = k!*C(n, k)*11^(n-k) for n>=0, k=0..n.at n=25A218018
- Number of n-derangements that have an odd number of 2-cycles.at n=9A248087
- Number of (n+1)X(4+1) 0..1 arrays with each row and column divisible by 3, read as a binary number with top and left being the most significant bits, and rows and columns lexicographically nonincreasing.at n=18A263795
- Expansion of (Sum_{k>=0} x^(k^2*(k+1)^2/4))^12.at n=48A284641
- Pentagonal pyramidal numbers divisible by 3.at n=29A299412
- Nonzero coefficients of the polynomials (x + d/dx)^n x^2, in row-major order.at n=57A330209