The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A228608

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A228608

E.g.f. A(x) satisfies: A'(x) = A(x)^2 + A(x)^4.
(history; published version)

#21 by Vaclav Kotesovec at Sun Jan 26 08:50:49 EST 2014

STATUS

editing

approved

#20 by Vaclav Kotesovec at Sun Jan 26 08:50:23 EST 2014

FORMULA

a(n) ~ n! / (GAMMA(1/3) * 3^(1/3) * n^(2/3) * (1-Pi/4)^(n+1/3)). - Vaclav Kotesovec, Jan 26 2014

STATUS

approved

editing

#19 by Vaclav Kotesovec at Fri Jan 24 02:45:24 EST 2014

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editing

approved

#18 by Vaclav Kotesovec at Fri Jan 24 02:45:11 EST 2014

LINKS

Vaclav Kotesovec, <a href="/A228608/b228608.txt">Table of n, a(n) for n = 0..350</a>

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approved

editing

#17 by Bruno Berselli at Fri Dec 20 06:44:08 EST 2013

STATUS

proposed

approved

#16 by Vaclav Kotesovec at Fri Dec 20 06:26:36 EST 2013

STATUS

editing

proposed

#15 by Vaclav Kotesovec at Fri Dec 20 06:26:28 EST 2013

MATHEMATICA

CoefficientList[Exp[InverseSeries[Series[1-Exp[-x]-ArcTan[Tanh[x/2]], {x, 0, 20}], x]], x]*Range[0, 20]! (* Vaclav Kotesovec, Dec 20 2013 *)

STATUS

approved

editing

#14 by Paul D. Hanna at Wed Dec 18 17:40:56 EST 2013

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editing

approved

#13 by Paul D. Hanna at Wed Dec 18 17:40:54 EST 2013

CROSSREFS

Cf. A112487, A124214.

STATUS

approved

editing

#12 by Paul D. Hanna at Wed Dec 18 13:28:57 EST 2013

STATUS

editing

approved