sech(sinh(x)*arcsin(x))=1-12/4!*x^4-240/6!*x^6+1680/8!*x^8...
A012544
sech(sinh(x)*arcsin(x))=1-12/4!*x^4-240/6!*x^6+1680/8!*x^8...
Terms
- a(0) =1a(1) =0a(2) =-12a(3) =-240a(4) =1680a(5) =660480a(6) =39530304a(7) =-3855231744
External references
- oeis: A012544