OFFSET
0,2
COMMENTS
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (1,2).
FORMULA
MATHEMATICA
Join[{1}, LinearRecurrence[{1, 2}, {2, -5}, 40]] (* Harvey P. Dale, Dec 11 2011 *)
CROSSREFS
KEYWORD
easy,sign
AUTHOR
Paul Curtz, Feb 03 2009
STATUS
approved