cos(sinh(x)*arcsin(x))=1-12/4!*x^4-240/6!*x^6-5040/8!*x^8...

A012538

cos(sinh(x)*arcsin(x))=1-12/4!*x^4-240/6!*x^6-5040/8!*x^8...

Terms

    a(0) =1a(1) =0a(2) =-12a(3) =-240a(4) =-5040a(5) =-145920a(6) =-9256896a(7) =-1349048064a(8) =-289962366720

External references