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A009701 Expansion of tan(tan(x))/cos(x). +0
1
1, 7, 137, 5535, 386481, 41604055, 6390472441, 1326107352879, 357130810766305, 121056393177867303, 50420813008501457897, 25307979564532627724095, 15065045963101006722139793 (list; graph; listen)
OFFSET

0,2

MATHEMATICA

Tan[ Tan[ x ]]/Cos[ x ] (* Odd Part *)

CROSSREFS

Sequence in context: A051504 A058881 A100520 this_sequence A120052 A142295 A056254

Adjacent sequences: A009698 A009699 A009700 this_sequence A009702 A009703 A009704

KEYWORD

nonn

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 29 17:54 EDT 2008. Contains 143238 sequences.


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