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A329511
Expansion of (1 + x)*(1 + x^2)^2*(1 + x - x^3) / (1 - x).
1
1, 3, 6, 9, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8
OFFSET
0,2
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
Row 4 of array in A329508.
Sequence in context: A224353 A224012 A340491 * A065940 A358350 A024795
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Nov 22 2019
STATUS
approved