tanh(cos(x)*arcsin(x))=x-4/3!*x^3+60/5!*x^5-2056/7!*x^7+127376/9!*x^9...

A012488

tanh(cos(x)*arcsin(x))=x-4/3!*x^3+60/5!*x^5-2056/7!*x^7+127376/9!*x^9...

Terms

    a(0) =1a(1) =-4a(2) =60a(3) =-2056a(4) =127376a(5) =-11253504a(6) =1524986944a(7) =-257629834112

External references