tanh(arcsin(arcsin(x)))=x+4/5!*x^5+136/7!*x^7+9424/9!*x^9...
A012070
tanh(arcsin(arcsin(x)))=x+4/5!*x^5+136/7!*x^7+9424/9!*x^9...
Terms
- a(0) =1a(1) =0a(2) =4a(3) =136a(4) =9424a(5) =1075264a(6) =183697344a(7) =43928797056
External references
- oeis: A012070