OFFSET
0,2
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..900
Index entries for linear recurrences with constant coefficients, signature (20, -125, 310, -264).
FORMULA
a(0)=1, a(1)=20, a(2)=275, a(3)=3310, a(n)=20*a(n-1)-125*a(n-2)+ 310*a(n-3)- 264*a(n-4). - Harvey P. Dale, May 24 2012
a(n)=(11^(n+3)-9*4^(n+4)+7*3^(n+5)-7*2^(n+5))/504. - Yahia Kahloune, May 20 2013.
MATHEMATICA
CoefficientList[Series[1/((1-2x)(1-3x)(1-4x)(1-11x)), {x, 0, 30}], x] (* or *) LinearRecurrence[{20, -125, 310, -264}, {1, 20, 275, 3310}, 30] (* Harvey P. Dale, May 24 2012 *)
PROG
(PARI) Vec(1/((1-2*x)*(1-3*x)*(1-4*x)*(1-11*x))+O(x^99)) \\ Charles R Greathouse IV, Sep 27 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved