References to A012857

Numerator of [x^(2n)] of the Taylor expansion log(cosec(x)*arctan(x))= -x^2/6 +3*x^4/20 -50*x^6/567 +203*x^8/3240 -7472*x^10/155925 +...
0, 1, 3, 50, 203, 7472, 319561, 4725019, 8552625673, 2454640799284

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