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Search: id:A025563
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A025563 a(n) = (1/1 + 1/(n-1) + ... + 1/C(n-[ n/2 ],[ n/2 ]))*L, where L = LCM{1, n-1, ..., C(n-[ n/2 ],[ n/2 ])}. +0
1
1, 2, 3, 7, 19, 71, 91, 485, 1195, 2825, 3379, 30311, 35440, 386765, 444215, 381599, 864173, 12849325, 14382075, 242411355, 268746270, 241122575, 265178965, 5523031235, 6032611435, 27525151138, 29887618948, 82357018570, 88965868595 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Sequence in context: A052919 A005807 A060276 this_sequence A110887 A065060 A079804

Adjacent sequences: A025560 A025561 A025562 this_sequence A025564 A025565 A025566

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified August 28 22:44 EDT 2008. Contains 143251 sequences.


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