A012159 - OEIS

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A012159

exp(tan(arcsinh(x)))=1+x+1/2!*x^2+2/3!*x^3+5/4!*x^4+16/5!*x^5...

1, 1, 1, 2, 5, 16, 61, 216, 937, 6400, 41881, 125696, 259181, 18156672, 225924245, -930421504, -25529526319, 394852151296, 8376428366257, -97538559528960, -2542034772205739, 37824762737852416 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	CROSSREFS	`A012167(n)=A012159(2n)` `Sequence in context: A205486 A005036 A012051 A009736 A104858 A178123` `Adjacent sequences: A012156 A012157 A012158 * A012160 A012161 A012162`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`
	EXTENSIONS	`More terms from N. J. A. Sloane (njas(AT)research.att.com), Aug 27 2006`

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Last modified February 13 17:43 EST 2012. Contains 205523 sequences.