sec(sinh(x)*arcsin(x))=1+12/4!*x^4+240/6!*x^6+15120/8!*x^8...
A012543
sec(sinh(x)*arcsin(x))=1+12/4!*x^4+240/6!*x^6+15120/8!*x^8...
Terms
- a(0) =1a(1) =0a(2) =12a(3) =240a(4) =15120a(5) =1355520a(6) =182229696a(7) =33914060544
External references
- oeis: A012543