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A013144
arctan(tanh(x)+atan(x))=2*x-20/3!*x^3+1128/5!*x^5-158112/7!*x^7...
+0
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2, -20, 1128, -158112, 41334912, -17364051712, 10697958401024, -9087507664709632, 10179531541621604352, -14538540850131730563072, 25785525466844174964228096, -55601885971190702384095952896
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
AT&T Labs Research
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