Numerator of [x^(2n)] in the Taylor expansion cosh(cosec(x)-coth(x))=1 +x^2/72 -215*x^4/31104 +199159*x^6/235146240-...
A013546
Numerator of [x^(2n)] in the Taylor expansion cosh(cosec(x)-coth(x))=1 +x^2/72 -215*x^4/31104 +199159*x^6/235146240-...
Terms
- a(0) =1a(1) =1a(2) =-215a(3) =199159a(4) =-4128623a(5) =257347648013a(6) =-111384981593
External references
- oeis: A013546