1806336
domain: N
Appears in sequences
- Squares expressible as the sum of two positive cubes in at least one way.at n=27A050802
- a(1)=0, a(2)=9; then distinct squares such that the sum of three successive terms is a square.at n=12A075373
- Final terms of rows of A077346.at n=17A077347
- Triangle read by rows: T(n,k) = 2^k * (n!/k!)*binomial(n-1,k-1).at n=41A086915
- Squares such that square-+5 are primes.at n=28A154711
- Triangle T(n, k) = (-1)^n*(k+1)!*(n-k+1)!*binomial(n+2, k+2)*binomial(n+2, n-k+2) read by rows.at n=24A176861
- One quarter the number of nX7 1..4 arrays with no two neighbors of any element equal to each other.at n=7A183359
- One quarter the number of nX8 1..4 arrays with no two neighbors of any element equal to each other.at n=6A183360
- Number of nX4 binary arrays without the pattern 1 1 0 diagonally or antidiagonally.at n=5A189106
- T(n,k)=Number of nXk binary arrays without the pattern 1 1 0 diagonally or antidiagonally.at n=41A189111
- Number of 6Xn binary arrays without the pattern 1 1 0 diagonally or antidiagonally.at n=3A189114
- Perfect powers of the form x^3 + y^3 where x and y are positive integers.at n=32A267088
- Perfect powers of the form x^3 + y^3 where x and y are distinct positive integers.at n=23A267416
- Determinant of the matrix d*e/gcd(d, e)^2, where d, e run through the unitary divisors of n.at n=38A367064