OFFSET
0,2
LINKS
FORMULA
a(n) = 8 for n >= 8.
PROG
(PARI) Vec((1 + x)*(1 + x^2)^2*(1 + x - x^3) / (1 - x) + O(x^80)) \\ Colin Barker, Nov 23 2019
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Nov 22 2019
STATUS
approved