sin(sec(x)*arctanh(x))=x+4/3!*x^3+20/5!*x^5-1024/7!*x^7-147568/9!*x^9...
A012841
sin(sec(x)*arctanh(x))=x+4/3!*x^3+20/5!*x^5-1024/7!*x^7-147568/9!*x^9...
Terms
- a(0) =1a(1) =4a(2) =20a(3) =-1024a(4) =-147568a(5) =-19148736a(6) =-2934842560a(7) =-551525234688
External references
- oeis: A012841