A002679 - OEIS

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A002679

Denominator of 2*Stirling_2(n,2)/n!.
(Formerly M4820 N2062)

1, 1, 12, 4, 360, 40, 20160, 12096, 259200, 604800, 239500800, 760320, 43589145600, 217945728000, 1494484992000, 697426329600, 3201186852864000, 16937496576000, 1216451004088320000, 30964207376793600, 11469395181404160000

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OFFSET

2,3

REFERENCES

H. E. Salzer, Tables of coefficients for differences in terms of the derivatives, Journal of Mathematics and Physics, 23 (1944), 210-212.

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

T. D. Noe, Table of n, a(n) for n=2..100

Index entries for sequences related to Bernoulli numbers.

CROSSREFS

Cf. A002678 (numerators).