tan(sin(arcsinh(x)))=x-4/5!*x^5+32/7!*x^7+80/9!*x^9-34048/11!*x^11...

A012036

tan(sin(arcsinh(x)))=x-4/5!*x^5+32/7!*x^7+80/9!*x^9-34048/11!*x^11...

Terms

    a(0) =1a(1) =0a(2) =-4a(3) =32a(4) =80a(5) =-34048a(6) =5048512a(7) =-984048128a(8) =246504417536

External references