|
| |
|
|
A156082
|
|
Minimal coefficient of the polynomial (-1)^n*prod_{k=1..n} (1-x^k)^2
|
|
0
| |
|
|
1, 2, 3, 4, 6, 8, 12, 19, 24, 36, 52, 74, 103, 156, 223, 322, 470, 682, 992, 1448, 2120, 3072, 4494, 6538, 9584, 14001, 20400, 29928, 43774, 64032, 93968, 137520, 201766, 296236, 433746, 637812, 936334, 1373622, 2021344, 2968872, 4364300, 6422472
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
LINKS
| S. R. Finch, Signum equations and extremal coefficients.
|
|
|
MATHEMATICA
| Table[ -Min[CoefficientList[Expand[(-1)^n*Product[(1 - x^k)^2, {k, 1, n}]], x]], {n, 1, 50}]
|
|
|
CROSSREFS
| A133871
Sequence in context: A074964 A017822 A179042 * A018465 A127107 A007886
Adjacent sequences: A156079 A156080 A156081 * A156083 A156084 A156085
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| S. R. Finch (Steven.Finch(AT)inria.fr), Feb 03 2009
|
| |
|
|
