arctanh(sinh(x)*tan(x))=2/2!*x^2+12/4!*x^4+382/6!*x^6+23352/8!*x^8...
A012551
arctanh(sinh(x)*tan(x))=2/2!*x^2+12/4!*x^4+382/6!*x^6+23352/8!*x^8...
Terms
- a(0) =2a(1) =12a(2) =382a(3) =23352a(4) =2464922a(5) =398069892a(6) =91079960662
External references
- oeis: A012551