OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (24, -211, 804, -1120).
FORMULA
a(n)=(8^(n+3)-2*7^(n+3)+2*5^(n+3)-4^(n+3))/12. [Yahia Kahloune, Jun 11 2013]
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved