51126

Appears in sequences

• Generalized Catalan Numbers x^4*A(x)^2 -(1-x+x^4+x^5)*A(x) +1 =0.at n=25A023428
• Number of integers k not exceeding 2^n such that the cube of number of divisors [A000005(k)] is larger than k.at n=31A056764
• A014486-indices of symmetric binary trees.at n=30A083940
• Number of 4k+3 primes whose Legendre-vector is not Dyck-path (A095103) in range ]2^n,2^(n+1)].at n=20A095093
• Diagonal of rational function 1/(1 - (1 + x*y*z) * (x + y + z)).at n=4A361728