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A027648 Denominators of poly-Bernoulli numbers B_n^(k) with k=4. 1
1, 16, 1296, 3456, 3240000, 144000, 1555848000, 59270400, 5000940000, 1587600, 9762501672000, 11269843200, 221794053611130000, 39390663312000, 5849513501832000, 519437318400, 407131014322092060000, 1063331477208000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

M. Kaneko, Poly-Bernoulli numbers, J. Theorie des Nombres Bordeaux 9 (1997), 221-228.

LINKS

Table of n, a(n) for n=0..17.

Index entries for sequences related to Bernoulli numbers.

M. Kaneko, Poly-Bernoulli numbers

MAPLE

(-1)^n*sum( (-1)^'m'*'m'!*stirling2(n, 'm')/('m'+1)^k, 'm'=0..n);

CROSSREFS

Cf. A027647.

Sequence in context: A113104 A186856 A000490 * A224105 A224098 A016828

Adjacent sequences:  A027645 A027646 A027647 * A027649 A027650 A027651

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 25 00:41 EDT 2013. Contains 225631 sequences.