OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (18,-87,70).
FORMULA
a(n) = 17*a(n-1) - 70*a(n-2) + 1; a(0)=1, a(1)=18. - Vincenzo Librandi, Feb 10 2011
a(n) = (2*10^(n+2) - 3*7^(n+2) + 1)/54. - Yahia Kahloune, Jul 09 2013
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved