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A009739 Expansion of tan(x).exp(x). +0
5
0, 1, 2, 5, 12, 41, 142, 685, 3192, 19921, 116282, 887765, 6219972, 56126201, 458790022, 4776869245, 44625674352, 526589630881, 5534347077362, 72989204937125, 852334810990332, 12424192360405961, 159592488559874302 (list; graph; listen)
OFFSET

0,3

MATHEMATICA

Tan[ x ]*Exp[ x ]

CROSSREFS

a(2n) = A009747(n), a(2n+1) = A003719(n).

Sequence in context: A054581 A140440 A005664 this_sequence A062272 A127137 A071787

Adjacent sequences: A009736 A009737 A009738 this_sequence A009740 A009741 A009742

KEYWORD

nonn,easy

AUTHOR

R. H. Hardin (rhh(AT)cadence.com)

EXTENSIONS

Extended and signs tested Mar 15 1997 by Olivier Gerard.

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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