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A009284 E.g.f.: exp(x + tan(x)). 0
1, 2, 4, 10, 32, 128, 616, 3424, 21632, 152000, 1179904, 9986560, 91734656, 906835712, 9609378304, 108540031744, 1302286401536, 16533214773248, 221420625719296, 3119382193635328, 46106240358318080, 713450250644701184, 11531738694322683904, 194362558120600797184 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..23.

PROG

(PARI)

x='x+O('x^66);

v=Vec(serlaplace(exp(x + tan(x))))

/* Joerg Arndt_, Sep 01 2012 */

CROSSREFS

Sequence in context: A013032 A098830 A121277 * A105557 A166741 A054091

Adjacent sequences:  A009281 A009282 A009283 * A009285 A009286 A009287

KEYWORD

nonn,easy

AUTHOR

R. H. Hardin

EXTENSIONS

Extended and signs tested Mar 15 1997 by Olivier Gérard

Name corrected by Arkadiusz Wesolowski, Sep 01 2012

STATUS

approved

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Last modified October 29 21:18 EDT 2020. Contains 338074 sequences. (Running on oeis4.)