sech(sinh(x)+arcsin(x))=1-4/2!*x^2+64/4!*x^4-2464/6!*x^6...
A013043
sech(sinh(x)+arcsin(x))=1-4/2!*x^2+64/4!*x^4-2464/6!*x^6...
Terms
- a(0) =1a(1) =-4a(2) =64a(3) =-2464a(4) =176000a(5) =-20274304a(6) =3418964992a(7) =-795860555520
External references
- oeis: A013043