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Search: id:A013178
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A013178 arctan(atanh(x)+atan(x))=2*x-16/3!*x^3+816/5!*x^5-100224/7!*x^7... +0
1
2, -16, 816, -100224, 23046912, -8501907456, 4600667731968, -3432263151550464, 3376634004034486272, -4235408050319799091200, 6597340706535893925101568, -12493980287273651231218728960 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Sequence in context: A013990 A013005 A013000 this_sequence A084595 A002543 A125791

Adjacent sequences: A013175 A013176 A013177 this_sequence A013179 A013180 A013181

KEYWORD

sign

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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