61404

Appears in sequences

• Seventh column of (1,5)-Pascal triangle A096940.at n=13A096944
• Numbers n such that sigma(n) = 11*phi(n) (where sigma=A000203, phi=A000010).at n=5A171257
• Number of right triangles on a (n+1)X6 grid.at n=38A189810
• a(n) = 6*n*(9*n-5).at n=34A277984
• Expansion of g.f. A(x) satisfying 4/x = Sum_{n=-oo..+oo} x^(n*(3*n+1)/2) * (A(x)^(3*n) - 1/A(x)^(3*n+1)).at n=4A361052