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A101613 (2n)! * Sum[k=n..2n, 1/k]. 5
3, 26, 684, 35664, 3068640, 392722560, 69878833920, 16484477184000, 4976250951168000, 1870345490614272000, 856314330237628416000, 469109144339151224832000, 302956190548293037916160000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..13.
CROSSREFS
Cf. A101609, A101610, A101611, A101612, A000254, A046673, A052517.
Sequence in context: A129430 A005156 A355120 * A280222 A354652 A174811
Adjacent sequences: A101610 A101611 A101612 * A101614 A101615 A101616
KEYWORD
nonn,easy
AUTHOR
Ralf Stephan, Dec 10 2004
STATUS
approved

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Last modified May 19 19:45 EDT 2024. Contains 372703 sequences. (Running on oeis4.)