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Search: id:A012993
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A012993 arctanh(atan(x)+arcsin(x))=2*x+15/3!*x^3+721/5!*x^5+84049/7!*x^7... +0
1
2, 15, 721, 84049, 18372769, 6443708601, 3315504514305, 2351891535306609, 2200048869778398657, 2623946039095984617321, 3886333930223496753553953, 6998154777889427559892675041 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Sequence in context: A013064 A013095 A038017 this_sequence A007542 A090604 A007467

Adjacent sequences: A012990 A012991 A012992 this_sequence A012994 A012995 A012996

KEYWORD

nonn

AUTHOR

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

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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