OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (34,-427,2346,-4752).
FORMULA
a(n) = 20*a(n-1) - 99*a(n-2) + 2^n*(4^(n+1) - 3^(n+1)), n >= 2. - Vincenzo Librandi, Mar 14 2011
a(n) = 2^(3*n+8)/3 + 11^(n+3)/30 - 6^(n+2)/5 - 3^(2*n+5)/2. - R. J. Mathar, Mar 14 2011
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved