OFFSET
0,2
COMMENTS
Unsigned version of A152223 .
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (4,6).
FORMULA
G.F.: (1+2x)/(1-4x-6x^2).
MATHEMATICA
LinearRecurrence[{4, 6}, {1, 6}, 30] (* Harvey P. Dale, Feb 16 2016 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Philippe Deléham, Nov 29 2008
EXTENSIONS
Corrected and extended by Harvey P. Dale, Feb 16 2016
STATUS
approved