A118342 Self-convolution cube of A108447.

1, 3, 15, 85, 519, 3330, 22135, 151089, 1052805, 7458236, 53554548, 388913046, 2851368587, 21076979445, 156907929177, 1175381112901, 8853057357159, 67007699270040, 509390314298820, 3887605401119964, 29775366104932044

Offset: 0

Author

Paul D. Hanna, Apr 25 2006

Keywords

• nonn

Crossrefs

Cf. A108447, A118341, A118343.

Programs

PARI

{a(n)=polcoeff((serreverse(x*(1-x+sqrt((1-x)*(1-5*x)+x*O(x^n)))/2/(1-x))/x)^3,n)}