|
Search: id:A143604
|
|
|
| A143604 |
|
Polynomial expansion sequence : p(x)=1 + x^2 - x^3 - x^5 - x^7 + x^8 + x^10. |
|
+0
1
|
|
| 1, 0, -1, 1, 1, -1, 0, 2, -1, -2, 3, 1, -4, 1, 4, -4, -3, 7, -1, -9, 6, 7, -12, -2, 16, -8, -16, 20, 8, -30, 8, 33, -30, -23, 53, -3, -65, 44, 56, -89, -16, 123, -55, -122, 145, 66, -224, 53, 251, -221, -183
(list; graph; listen)
|
|
|
OFFSET
|
1,8
|
|
|
FORMULA
|
p(x)=1 + x^2 - x^3 - x^5 - x^7 + x^8 + x^10; a(n)=expansion_coefficients(x^10*p(1/x)),
|
|
MATHEMATICA
|
f[x_] = 1 + x^2 - x^3 - x^5 - x^7 + x^8 + x^10; g[x] = ExpandAll[x^10*f[1/x]]; a = Table[SeriesCoefficient[Series[1/g[x], {x, 0, 50}], n], {n, 0, 50}]
|
|
CROSSREFS
|
Sequence in context: A144215 A122087 A139642 this_sequence A021475 A132224 A167198
Adjacent sequences: A143601 A143602 A143603 this_sequence A143605 A143606 A143607
|
|
KEYWORD
|
sign
|
|
AUTHOR
|
Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Oct 26 2008
|
|
|
Search completed in 0.002 seconds
|
