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Search: id:A012727
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A012727 exp(arctanh(x)*atan(x))=1+2/2!*x^2+12/4!*x^4+328/6!*x^6+13328/8!*x^8... +0
1
1, 2, 12, 328, 13328, 1160352, 123701952, 22207125120, 4532782825728, 1380071532433920, 459909185638812672, 212375023941305272320, 104929881035116227072000, 68350141067274779587092480 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A094047 A091472 A156518 this_sequence A088229 A060596 A074257

Adjacent sequences: A012724 A012725 A012726 this_sequence A012728 A012729 A012730

KEYWORD

nonn

AUTHOR

Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)

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

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