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A033636 (n-1)! * product( (2*n)!-2*i-1, i=1..n-1 ). 0
1, 21, 1025310, 393143628567690, 4161601591128480023923529880, 3025979870886810157320547152897281546399520600, 316069513961213168272637175554794298273860325049869267706740636689200 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

Barry Simon, Representations of Finite and Compact Groups, AMS, p. 233.

LINKS

Table of n, a(n) for n=1..7.

MATHEMATICA

Table[(n - 1)!*Product[(2 n)! - 2 i - 1, {i, n - 1}], {n, 7}] (* Wesley Ivan Hurt, May 07 2014 *)

CROSSREFS

Sequence in context: A143736 A189252 A173518 * A138080 A013814 A013898

Adjacent sequences:  A033633 A033634 A033635 * A033637 A033638 A033639

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Dec 11 1999

STATUS

approved

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Last modified May 26 13:05 EDT 2019. Contains 323586 sequences. (Running on oeis4.)