cosh(arcsinh(x)+arctan(x))=1+4/2!*x^2-8/4!*x^4+70/6!*x^6-920/8!*x^8...
A013112
cosh(arcsinh(x)+arctan(x))=1+4/2!*x^2-8/4!*x^4+70/6!*x^6-920/8!*x^8...
Terms
- a(0) =1a(1) =4a(2) =-8a(3) =70a(4) =-920a(5) =-28550a(6) =10642900a(7) =-2554095050a(8) =685535422000
External references
- oeis: A013112