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A013003
arcsinh(arctan(x)+tan(x))=2*x-8/3!*x^3+328/5!*x^5-32608/7!*x^7...
0
2, -8, 328, -32608, 6483328, -2134642688, 1052574333952, -725748770065408, 666646160260988928, -786828198376481390592, 1160307802288187922251776, -2090565114493628148202864640
OFFSET
0,1
CROSSREFS
Sequence in context: A054943 A013135 A012999 * A009707 A013176 A220904
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved