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A104254 n^n - (-1)^n(n+1)!. 0
3, -2, 51, 136, 3845, 41616, 863863, 16414336, 391049289, 9960083200, 285790672211, 8909873427456, 302962284883453, 11110699151190016, 437914813170747375, 18446388386281455616, 827246664260042492177 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Permanent of the (n X n) matrix {1/(x_i-y_j), 1<=i<=n, 1<=j<=n}, where x_1,x_2,...,x_m are the zeros of x^n-1 and y_1,y_2,...,y_m the zeros of y^(n+1)+y^n-1.

LINKS

Table of n, a(n) for n=1..17.

G.-N. Han and C. Krattenthaler, Rectangular Scott-type permanents

CROSSREFS

Sequence in context: A009395 A226769 A093892 * A231576 A190286 A063513

Adjacent sequences:  A104251 A104252 A104253 * A104255 A104256 A104257

KEYWORD

sign

AUTHOR

Ralf Stephan, Mar 02 2005

STATUS

approved

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Last modified October 21 11:10 EDT 2018. Contains 316414 sequences. (Running on oeis4.)