A118342 - OEIS

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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

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..20.

PROG

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

CROSSREFS

Cf. A108447, A118341, A118343.

Sequence in context: A011900 A371754 A346374 * A084209 A317133 A182016

Adjacent sequences: A118339 A118340 A118341 * A118343 A118344 A118345

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Apr 25 2006

STATUS

approved