OFFSET
1,1
LINKS
Index entries for linear recurrences with constant coefficients, signature (10,-35,50,-24).
FORMULA
G.f.: 2*x*(19*x^3-24*x^2+9*x-1)/((x-1)*(2*x-1)*(3*x-1)*(4*x-1)). - Colin Barker, Oct 29 2012
MATHEMATICA
lst={}; Do[p=4^n-3^n-2^n-1^n; AppendTo[lst, p], {n, 0, 5!}]; lst
LinearRecurrence[{10, -35, 50, -24}, {-2, -2, 2, 28}, 40] (* Harvey P. Dale, Nov 08 2016 *)
PROG
(PARI) a(n)=4^n-3^n-2^n-1 \\ Charles R Greathouse IV, Oct 07 2015
CROSSREFS
KEYWORD
sign,easy
AUTHOR
Vladimir Joseph Stephan Orlovsky, Nov 18 2008
STATUS
approved