A016111 Expansion of 1/((1-11x)(1-12x)(1-13x)(1-14x)(1-15x)).

1, 65, 2540, 77350, 2022951, 47708115, 1043778730, 21572322200, 426384404501, 8130687730165, 150551375530920, 2720251171051050, 48146139744079651, 837259855674756215, 14340645378939543110

Offset: 0

Author

Robert G. Wilson v

Keywords

• nonn
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..200
• A. J. Macula, Lewis Carroll and the enumeration of minimal covers, Math. Mag., 68 (1995), 269-274.
• Eric Weisstein's World of Mathematics, Minimal Cover
• Index entries for linear recurrences with constant coefficients, signature (65, -1685, 21775, -140274, 360360).

Programs

Mathematica

CoefficientList[Series[1 / ((1 - 11 x) (1 - 12 x) (1 - 13 x) (1 - 14 x) (1 - 15 x)), {x, 0, 20}], x] (* Vincenzo Librandi, Jun 24 2013 *)

PARI

Vec(1/((1-11*x)*(1-12*x)*(1-13*x)*(1-14*x)*(1-15*x))+O(x^99)) \\ Charles R Greathouse IV, Sep 26 2015

Extensions

Offset changed from 1 to 0. Typo in name fixed by Vincenzo Librandi, Jun 24 2013