Numerator of [x^(2n)] of the Taylor series sech(cosec(x)-cot(x)) = 1 -x^2/8 -x^4/128 +x^6/15360 +19*x^8/294912 +25031*x^10/3715891200+... .

A013528

Numerator of [x^(2n)] of the Taylor series sech(cosec(x)-cot(x)) = 1 -x^2/8 -x^4/128 +x^6/15360 +19*x^8/294912 +25031*x^10/3715891200+... .

Terms

    a(0) =1a(1) =-1a(2) =-1a(3) =1a(4) =19a(5) =25031a(6) =18421a(7) =-622177a(8) =-283401163a(9) =-24826632949a(10) =-2243454779

External references