cosh(log(cos(x))) = 1+3/4!*x^4+30/6!*x^6+693/8!*x^8+25260/10!*x^10...
A012007
cosh(log(cos(x))) = 1+3/4!*x^4+30/6!*x^6+693/8!*x^8+25260/10!*x^10...
Terms
- a(0) =1a(1) =0a(2) =3a(3) =30a(4) =693a(5) =25260a(6) =1351383a(7) =99680490a(8) =9695756073
External references
- oeis: A012007