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Search: id:A012031
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A012031 arcsinh(sin(sinh(x)))=x-1/3!*x^3+1/5!*x^5-113/7!*x^7+4033/9!*x^9... +0
1
1, -1, 1, -113, 4033, -307297, 32041153, -4722808145, 919792817281, -229762987386049, 71595055755086977, -27226195625057526833, 12411835138553868048961, -6681718218812850626513185 (list; graph; listen)
OFFSET

0,4
CROSSREFS

Sequence in context: A075030 A079098 A008362 this_sequence A090480 A152496 A106748

Adjacent sequences: A012028 A012029 A012030 this_sequence A012032 A012033 A012034

KEYWORD

sign

AUTHOR

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

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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