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A013160 cos(arctanh(x)+log(x+1))=1-4/2!*x^2+6/3!*x^3-19/4!*x^4+20/5!*x^5... 0
1, 0, -4, 6, -19, 20, -70, -1050, 7645, -125640, 1074400, -15186050, 154663825, -2302431300, 27387957350, -445100087250, 6069674521625, -108269831098000, 1666530849522500, -32533793834402250 (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: A274992 A317584 A012928 * A153777 A034189 A024697

Adjacent sequences:  A013157 A013158 A013159 * A013161 A013162 A013163

KEYWORD

sign

AUTHOR

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

STATUS

approved

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Last modified July 24 05:21 EDT 2019. Contains 325290 sequences. (Running on oeis4.)