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A013186 Expansion of e.g.f. log(cosh(x) + arcsin(x)). 0
0, 1, 0, 0, 0, 8, -48, 392, -2240, 20096, -147200, 1754368, -16873472, 241340032, -2769127424, 44833033216, -593918959616, 10840711614464, -164204798541824, 3348758074142720, -57147730941444096 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

LINKS

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

EXAMPLE

x + 8/5!*x^5 - 48/6!*x^6 + 392/7!*x^7 - 2240/8!*x^8 ...

CROSSREFS

Sequence in context: A077708 A165041 A165049 * A165506 A165748 A220174

Adjacent sequences:  A013183 A013184 A013185 * A013187 A013188 A013189

KEYWORD

sign

AUTHOR

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

EXTENSIONS

a(0)=0 inserted and title improved by Sean A. Irvine, Aug 01 2018

STATUS

approved

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Last modified September 27 02:49 EDT 2020. Contains 337380 sequences. (Running on oeis4.)