OFFSET
0,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (1,1,0,1).
MATHEMATICA
LinearRecurrence[{1, 1, 0, 1}, {2, 3, 6, 9}, 40] (* Harvey P. Dale, Jul 14 2018 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
P. Barkin (prb614(AT)comcast.net), Jul 16 2004
EXTENSIONS
Corrected and extended by Ray G. Opao, Aug 09 2004
STATUS
approved