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A012138
cos(arcsin(arctanh(x)))=1-1/2!*x^2-11/4!*x^4-349/6!*x^6-22455/8!*x^8...
1
1, -1, -11, -349, -22455, -2465241, -416217603, -100729124469, -33198564667887, -14328891118054449, -7852649782447649403, -5329635152693662625805, -4388960085492355649955495
OFFSET
0,3
CROSSREFS
Cf. A012251.
Sequence in context: A192841 A158788 A012220 * A067428 A171630 A303116
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved