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Search: id:A012521
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A012521 arctanh(sinh(x)*exp(x))=x+2/2!*x^2+6/3!*x^3+32/4!*x^4+240/5!*x^5... +0
1
1, 2, 6, 32, 240, 2192, 23856, 303872, 4427520, 72545792, 1320608256, 26445350912, 577722163200, 13672510932992, 348466876717056, 9515645659185152, 277168473987809280, 8577847096804769792 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Adjacent sequences: A012518 A012519 A012520 this_sequence A012522 A012523 A012524

Sequence in context: A111550 A009686 A012318 this_sequence A012324 A121676 A133596

KEYWORD

nonn

AUTHOR

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

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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