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A012155 arcsin(tan(sinh(x)))=x+4/3!*x^3+76/5!*x^5+3592/7!*x^7+325648/9!*x^9... 0
1, 4, 76, 3592, 325648, 49088128, 11155494208, 3566506418560, 1525463139748096, 840688518856539136, 579910469070833277952, 489338149015716318963712, 495775150805105569019662336 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

MATHEMATICA

Select[ Range[0, 27]! CoefficientList[ Series[ ArcSin[ Tan[ Sinh[x]]], {x, 0, 27}], x], # > 0 &] (from Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 05 2005)

CROSSREFS

Sequence in context: A012080 A012047 A012010 * A118193 A052271 A184272

Adjacent sequences:  A012152 A012153 A012154 * A012156 A012157 A012158

KEYWORD

nonn

AUTHOR

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

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.