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

Author

Philippe Deléham, Nov 18 2007

Keywords

• nonn

Programs

Mathematica

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

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

Extensions

More terms from Philippe Deléham, Oct 27 2011