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A013164 cosh(arctanh(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+51/4!*x^4-180/5!*x^5... 0
1, 0, 4, -6, 51, -180, 1710, -9450, 105525, -793800, 10319400, -98232750, 1463667975, -16856739900, 283755121650, -3834908327250, 72041492147625, -1117601855370000, 23190238498927500, -406108574195073750 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..19.

CROSSREFS

Sequence in context: A241159 A116656 A012933 * A013024 A012910 A259133

Adjacent sequences:  A013161 A013162 A013163 * A013165 A013166 A013167

KEYWORD

sign

AUTHOR

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

STATUS

approved

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Last modified August 19 23:59 EDT 2022. Contains 356231 sequences. (Running on oeis4.)