Numerator of [x^(2n+1)] of the Taylor expansion -arcsin(cot(x)-coth(x)).
A013553
Numerator of [x^(2n+1)] of the Taylor expansion -arcsin(cot(x)-coth(x)).
Terms
- a(0) =2a(1) =4a(2) =8a(3) =272a(4) =15640a(5) =103504a(6) =203248a(7) =4712878048a(8) =994787896
External references
- oeis: A013553