OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (33, -378, 1688, -2112).
FORMULA
a(n)=(27*12^(n+3)-40*11^(n+3)+15*8^(n+3)-2^(n+4))/1080. [Yahia Kahloune, May 29 2013]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved