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A024342 Expansion of tanh(x)*tan(x). +0
2
2, 112, 92672, 365688832, 4411282030592, 127206964253949952, 7496936195881447718912, 809926025985929119868649472, 148071124873925782667263194693632 (list; graph; listen)
OFFSET

0,1

MATHEMATICA

Tanh[ x ]*Tan[ x ] (* [ x^(4n+2) ] *)

CROSSREFS

Sequence in context: A117698 A024341 A012528 this_sequence A012525 A165975 A051590

Adjacent sequences: A024339 A024340 A024341 this_sequence A024343 A024344 A024345

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net)

EXTENSIONS

Extended and signs tested Mar 15 1997 by Olivier Gerard.

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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