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 (2,3,2,3).
FORMULA
G.f.: -(((1+x)*(2+x^2))/(-1+x(2+3*x)*(1+x^2))). - Harvey P. Dale, May 04 2015
MATHEMATICA
LinearRecurrence[{2, 3, 2, 3}, {2, 6, 19, 61}, 30] (* Harvey P. Dale, May 04 2015 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved