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A013133 exp(tanh(x)+tan(x))=1+2*x+4/2!*x^2+8/3!*x^3+16/4!*x^4+64/5!*x^5... 0
1, 2, 4, 8, 16, 64, 448, 2816, 14592, 80896, 705536, 7278592, 65245184, 532070400, 5385535488, 71008190464, 910402060288, 10323887915008, 124371776831488, 1895043049717760, 30930578556583936 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..20.

CROSSREFS

Sequence in context: A074700 A230863 A322037 * A012997 A013184 A066713

Adjacent sequences:  A013130 A013131 A013132 * A013134 A013135 A013136

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified November 28 16:42 EST 2021. Contains 349413 sequences. (Running on oeis4.)