OFFSET
0,1
LINKS
Index entries for linear recurrences with constant coefficients, signature (16,-71,56).
FORMULA
From Mohammad K. Azarian, Dec 26 2008: (Start)
G.f.: 1/(1-x) + 1/(1-7*x) + 1/(1-8*x).
E.g.f.: e^x + e^(7*x) + e^(8*x). (End)
a(n) = 15*a(n-1) - 56*a(n-2) + 42 with a(0)=3, a(1)=16. - Vincenzo Librandi, Jul 21 2010
MATHEMATICA
Table[1^n + 7^n + 8^n, {n, 0, 20}]
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Robert G. Wilson v, Aug 23 2002
STATUS
approved