References to A013519

Numerator of [x^(2n+1)] in the Taylor expansion tan(cosec(x)-cot(x)) = x/2 +x^3/12 +3*x^5/160 +181*x^7/40320 +59*x^9/53760 +3455*x^11/12773376 +...
1, 1, 3, 181, 59, 3455, 3332389, 173339393, 449509681, 198232237033

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