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Search: id:A004193
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A004193 -(-1)^n*2*(2n+1)!*Bernoulli(2n)/(n!*2^n). +0
3
1, 1, 5, 63, 1575, 68409, 4729725, 488783295, 71982456975, 14550187083705, 3916321542458325, 1368981608178405375, 608576219802039864375, 337967570725260384533625, 230885276313275432674678125 (list; graph; listen)
OFFSET

1,3

REFERENCES

J. Spanier and K. B. Oldham, An Atlas of Functions, Hemisphere, NY, 1987, p. 35, Eq. 4:2:1.

LINKS

Index entries for sequences related to Bernoulli numbers.

PROGRAM

(PARI) a(n)=if(n<1, 0, -(-1)^n*2*(2*n+1)!*bernfrac(2*n)/(n!*2^n))

CROSSREFS

Bernoulli numbers are A000367/A002445.

Sequence in context: A067129 A063079 A112788 this_sequence A027667 A054937 A073179

Adjacent sequences: A004190 A004191 A004192 this_sequence A004194 A004195 A004196

KEYWORD

nonn,nice

AUTHOR

David W. Cantrell (DWCantrell(AT)sigmaxi.net)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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