login
A173245
O.g.f. (x + 1)^10/ (sum_{i=0..10} x^i) .
1
1, 9, 35, 75, 90, 42, -42, -90, -75, -35, -9, 0, 9, 35, 75, 90, 42, -42, -90, -75, -35, -9, 0, 9, 35, 75, 90, 42, -42, -90, -75, -35, -9, 0, 9, 35, 75, 90, 42, -42, -90, -75, -35, -9, 0, 9, 35, 75, 90, 42, -42
OFFSET
0,2
COMMENTS
Periodic with period length 11.
LINKS
FORMULA
G.f. (1-x^2)*(1+x)^9/(1-x^11), not completely reduced.
MATHEMATICA
p[x_] = (x + 1)^10/Sum[x^i, {i, 0, 10}];
a = Table[SeriesCoefficient[ Series[p[x], {x, 0, 50}], n], {n, 0, 50}]
CROSSREFS
Sequence in context: A339995 A085366 A304913 * A033566 A226755 A022275
KEYWORD
sign,easy,less
AUTHOR
Roger L. Bagula, Feb 13 2010
EXTENSIONS
Dummy variables removed by the Assoc. Editors of the OEIS, Mar 10 2010.
STATUS
approved