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Search: id:A013177
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A013177 tan(arctanh(x)+atan(x))=2*x+16/3!*x^3+560/5!*x^5+42880/7!*x^7... +0
1
2, 16, 560, 42880, 5692160, 1158860800, 335091660800, 130514735104000, 65860132462592000, 41792278392537088000, 32569972497977507840000, 30580999289444580720640000, 34048056335378925092864000000 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Sequence in context: A013004 A012679 A012726 this_sequence A060279 A012757 A012464

Adjacent sequences: A013174 A013175 A013176 this_sequence A013178 A013179 A013180

KEYWORD

nonn

AUTHOR

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

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Last modified December 4 12:27 EST 2008. Contains 151280 sequences.

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