A132865 Expansion of 1/(1-5x*c(6x)), where c(x) is the g.f. of A000108.

1, 5, 55, 785, 12775, 224945, 4174135, 80404385, 1592666695, 32238859025, 663961262935, 13868665189505, 293105002282855, 6256280361209585, 134676678504352375, 2920490688138377825, 63738849200291875975, 1398964964239496726225, 30859472167442041607575

Offset

0,2

Links

Table of n, a(n) for n=0..18.

Formula

a(n) = Sum_{k=0..n} A039599(n,k)*(-1)^k*6^(n-k). - Philippe Deléham, Dec 11 2007

G.f.: 12/(7 + 5*sqrt(1-24x)). - Philippe Deléham, Oct 27 2011

Mathematica

CoefficientList[Series[12/(7+5Sqrt[1-24x]), {x, 0, 20}], x] (* Harvey P. Dale, Sep 26 2017 *)

Crossrefs

Sequence in context: A131846 A144577 A234508 * A294051 A145662 A362653

Adjacent sequences: A132862 A132863 A132864 * A132866 A132867 A132868

Keyword

nonn

Author

Philippe Deléham, Nov 18 2007

Extensions

More terms from Philippe Deléham, Oct 27 2011

Status

approved