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Search: id:A101613
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A101613 (2n)! * Sum[k=n..2n, 1/k]. +0
6
3, 26, 684, 35664, 3068640, 392722560, 69878833920, 16484477184000, 4976250951168000, 1870345490614272000, 856314330237628416000, 469109144339151224832000, 302956190548293037916160000 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Cf. A101609, A101610, A101611, A101612, A000254, A046673, A052517.

Adjacent sequences: A101610 A101611 A101612 this_sequence A101614 A101615 A101616

Sequence in context: A112612 A129430 A005156 this_sequence A088730 A058956 A010257

KEYWORD

nonn,easy

AUTHOR

Ralf Stephan, Dec 10 2004

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Last modified October 9 14:06 EDT 2008. Contains 144831 sequences.


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