A114860 Denominator of coefficient of z^(2n) in log(InverseErf(z)).

12, 90, 90720, 302400, 239500800, 245188944000, 104613949440, 333456963840000, 4180167995867136000, 603108220176000000, 31022420086661971968000, 4962375400581280281600000

Offset

1,1

Links

G. C. Greubel, Table of n, a(n) for n = 1..224

Example

(Pi*z^2)/12 + (Pi^2*z^4)/90 + (193*Pi^3*z^6)/90720 + log(sqrt(Pi)/2) + log(z) + ...

Mathematica

Denominator[CoefficientList[Series[Log[InverseErf[x]] , {x, 0, 50}], x]][[;; ;; 2]] (* G. C. Greubel, Mar 19 2017 *)

Crossrefs

Cf. A114859.

Sequence in context: A250344 A135173 A173223 * A001502 A001503 A004311

Adjacent sequences: A114857 A114858 A114859 * A114861 A114862 A114863

Keyword

nonn,frac

Author

Eric W. Weisstein, Jan 02 2006

Status

approved