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A057869 Triangle of coefficients of x^2 in the Neumann polynomials. 0
1, 1, 4, 1, 24, 3, 192, 16, 1, 1920, 120, 5, 23040, 1152, 36, 1, 322560, 13440, 336, 7, 5160960, 184320, 3840, 64, 1, 92897280, 2903040, 51840, 720, 9, 1857945600, 51609600, 806400, 9600, 100, 1, 40874803200, 1021870080, 14192640, 147840 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..39.

Eric Weisstein's World of Mathematics, Neumann Polynomial.

CROSSREFS

Sequence in context: A039812 A308559 A249268 * A337204 A166027 A158978

Adjacent sequences:  A057866 A057867 A057868 * A057870 A057871 A057872

KEYWORD

nonn,tabl

AUTHOR

Eric W. Weisstein

STATUS

approved

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Last modified September 20 04:00 EDT 2020. Contains 337264 sequences. (Running on oeis4.)