OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (25, -210, 680, -704).
FORMULA
a(n) = -2*2^n/27 +8*4^n/7 -64*8^n/9 +1331*11^n/189. R. J. Mathar, Jun 20 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved