arctan(sinh(x)*arctan(x))=2/2!*x^2-4/4!*x^4-130/6!*x^6+2200/8!*x^8...
A012558
arctan(sinh(x)*arctan(x))=2/2!*x^2-4/4!*x^4-130/6!*x^6+2200/8!*x^8...
Terms
- a(0) =0a(1) =2a(2) =-4a(3) =-130a(4) =2200a(5) =393178a(6) =-36230060a(7) =-2241493098a(8) =696842413488
External references
- oeis: A012558