arctan(sec(x)*arctanh(x))=x+3/3!*x^3-7/5!*x^5-917/7!*x^7-7183/9!*x^9...
A012844
arctan(sec(x)*arctanh(x))=x+3/3!*x^3-7/5!*x^5-917/7!*x^7-7183/9!*x^9...
Terms
- a(0) =1a(1) =3a(2) =-7a(3) =-917a(4) =-7183a(5) =3803987a(6) =316369129a(7) =-40892465221
External references
- oeis: A012844