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A013570
log(arctan(x)/log(x+1))=x-9/2!*x^2+1/4!*x^4+7/5!*x^5-4977/6!*x^6...
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1
1, -9, 0, 1, 7, -4977, 219, 1039, 11570, -33344784, 995254, 7720297, 126624718, -4415407356, 22344623929, 241815032188, 5222279193717, -86652127610560844, 1561364880901471, 21735423877239687
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 16 13:01 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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