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A329510
Expansion of (1 + x)*(1 + x + x^2)*(1 + x^2 - x^3) / (1 - x).
1
1, 3, 6, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6
OFFSET
0,2
COMMENTS
Decimal expansion of 410663/3000000. - Elmo R. Oliveira, May 06 2024
FORMULA
a(n) = 6 for n >= 6.
PROG
(PARI) Vec((1 + x)*(1 + x + x^2)*(1 + x^2 - x^3) / (1 - x) + O(x^60)) \\ Colin Barker, Nov 23 2019
CROSSREFS
Row 3 of array in A329508.
Sequence in context: A202300 A244467 A200590 * A036265 A016663 A023993
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Nov 22 2019
STATUS
approved