Numerators of e.g.f.: -cot(arctanh(x)), odd powers only.
A102064
Numerators of e.g.f.: -cot(arctanh(x)), odd powers only.
Terms
- a(0) =2a(1) =4a(2) =1040a(3) =4640a(4) =331520a(5) =178470400a(6) =24593254400a(7) =666964480000
External references
- oeis: A102064