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A012052 sin(sin(arctanh(x)))=x-4/5!*x^5-136/7!*x^7-7408/9!*x^9-644416/11!*x^11... 0
1, 0, -4, -136, -7408, -644416, -84562880, -15811723136, -4005496370944, -1317763889887232, -544096638435718144, -274416039275290634240, -165481485047921126273024, -117299354914466636092850176 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..13.

CROSSREFS

Sequence in context: A012197 A202299 A024264 * A054052 A012070 A001374

Adjacent sequences:  A012049 A012050 A012051 * A012053 A012054 A012055

KEYWORD

sign

AUTHOR

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

STATUS

approved

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Last modified November 28 13:47 EST 2021. Contains 349413 sequences. (Running on oeis4.)