OFFSET
0,1
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..1000
Tanya Khovanova, Recursive Sequences
Index entries for linear recurrences with constant coefficients, signature (1, 1).
FORMULA
G.f.: 2*(1+11*x)/(1-x-x^2). - Philippe Deléham, Nov 19 2008
Equals 2*A022102(n). - Bruno Berselli, Oct 05 2017
a(n) = a(n-1)+a(n-2). - Wesley Ivan Hurt, May 10 2021
MATHEMATICA
LinearRecurrence[{1, 1}, {2, 24}, 50] (* G. C. Greubel, Oct 04 2017 *)
PROG
(PARI) x='x+O('x^50); Vec((2+22*x)/(1-x-x^2)) \\ G. C. Greubel, Oct 04 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
Terms a(30) onward added by G. C. Greubel, Oct 04 2017
STATUS
approved