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A037959 (n+2)!*n^2*(n+1)/48. 0
6, 90, 1200, 15750, 211680, 2963520, 43545600, 673596000, 10977120000, 188367379200, 3399953356800, 64457449056000, 1281520880640000, 26676557107200000, 580481882652672000, 13183287756807168000 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

REFERENCES

The right-hand side of a binomial coefficient identity in H. W. Gould, Combinatorial Identities, Morgantown, 1972.

LINKS

Table of n, a(n) for n=2..17.

FORMULA

(n-1)^2*a(n) -n*(n+2)*(n+1)*a(n-1)=0. - R. J. Mathar, Jul 26 2015

CROSSREFS

Sequence in context: A002432 A091800 A317487 * A247150 A201073 A006480

Adjacent sequences:  A037956 A037957 A037958 * A037960 A037961 A037962

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 20 04:37 EDT 2018. Contains 316378 sequences. (Running on oeis4.)