sec(tan(sinh(x)))=1+1/2!*x^2+17/4!*x^4+673/6!*x^6+48929/8!*x^8...
A012157
sec(tan(sinh(x)))=1+1/2!*x^2+17/4!*x^4+673/6!*x^6+48929/8!*x^8...
Terms
- a(0) =1a(1) =1a(2) =17a(3) =673a(4) =48929a(5) =5673089a(6) =961574833a(7) =224363899425
External references
- oeis: A012157