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A012659 arcsin(tanh(x)*exp(x))=x+2/2!*x^2+2/3!*x^3+8/4!*x^4+80/5!*x^5... 0
1, 2, 2, 8, 80, 512, 3992, 47168, 588800, 7903232, 124255232, 2161507328, 40505429120, 829919658752, 18433385276672, 438231826239488, 11136829247959040, 301669044409475072, 8662857659856269312 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..18.

CROSSREFS

Sequence in context: A048617 A000615 A012413 * A009448 A012410 A123642

Adjacent sequences:  A012656 A012657 A012658 * A012660 A012661 A012662

KEYWORD

nonn

AUTHOR

Patrick Demichel (patrick.demichel(AT)hp.com)

STATUS

approved

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Last modified April 18 06:39 EDT 2014. Contains 240706 sequences.