References to A013550

Numerator of the coefficient of [x^n] in the Taylor expansion exp(cot(x)-cosech(x))= 1-x/6 +x^2/72 -55*x^3/1296 +217*x^4/31104 -4219*x^5/6531840 +...
1, 1, 1, 55, 217, 4219, 214279, 802171, 824071, 109684277, 337533513773

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