OFFSET
0,2
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (17,-104,268,-240).
FORMULA
a(n) = -2^n/3 +16*4^n/1 -125*5^n/3 +27*6^n/1. - R. J. Mathar, Jun 20 2013
a(0)=1, a(1)=17, a(2)=185, a(3)=1645, a(n)=17*a(n-1)-104*a(n-2)+ 268*a(n-3)- 240*a(n-4). - Harvey P. Dale, Oct 10 2015
MATHEMATICA
CoefficientList[Series[1/((1-2x)(1-4x)(1-5x)(1-6x)), {x, 0, 30}], x] (* or *) LinearRecurrence[{17, -104, 268, -240}, {1, 17, 185, 1645}, 30] (* Harvey P. Dale, Oct 10 2015 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved