OFFSET
0,3
COMMENTS
Gives the even terms, all the odd terms are 0.
LINKS
Index entries for linear recurrences with constant coefficients, signature (2, 4, 8, 32).
FORMULA
G.f.: (12*x^4+6*x^3+2*x^2+2*x-1) / ((4*x-1) * (2*x+1) * (4*x^2+1)).
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Sean A. Irvine, Nov 09 2024
STATUS
approved