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A013098 tanh(arcsinh(x)+tan(x))=2*x-15/3!*x^3+457/5!*x^5-30289/7!*x^7... 0
2, -15, 457, -30289, 3469345, -608926329, 151766090881, -50946876706129, 22157750605438913, -12118460218882345193, 8139938757873193425313, -6587354373887296232631681, 6321346340322177807347908193 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

CROSSREFS

Sequence in context: A139810 A012943 A013059 * A158109 A177394 A136463

Adjacent sequences:  A013095 A013096 A013097 * A013099 A013100 A013101

KEYWORD

sign

AUTHOR

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

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Last modified February 15 21:27 EST 2012. Contains 205859 sequences.