A145161 G.f. A(x) satisfies A(x/A(x)) = 1/(1-x)^3.

1, 3, 15, 118, 1287, 17547, 279742, 5006016, 98012094, 2064544861, 46251043536, 1092948858498, 27078465176915, 700154717998512, 18825830520559743, 524889708138232101, 15140268414007624623, 450944670503507069127

Offset

0,2

Links

Table of n, a(n) for n=0..17.

Formula

Self-convolution cube of A145160.

Prog

(PARI) {a(n)=local(A=1+x+x*O(x^n)); for(n=0, n, B=serreverse(x/A); A=1/(1-B)^3); polcoeff(A, n)}

Crossrefs

Cf. A145160.

Sequence in context: A259843 A136654 A364621 * A121422 A060639 A068052

Adjacent sequences: A145158 A145159 A145160 * A145162 A145163 A145164

Keyword

nonn

Author

Paul D. Hanna, Oct 03 2008

Status

approved