cos(arctan(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-15/4!*x^4+20/5!*x^5...

A012412

cos(arctan(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-15/4!*x^4+20/5!*x^5...

Terms

    a(0) =1a(1) =0a(2) =-1a(3) =-6a(4) =-15a(5) =20a(6) =255a(7) =70a(8) =-3423a(9) =46728a(10) =501375a(11) =-3625358a(12) =-60112239a(13) =420430556a(14) =9211149311a(15) =-79037179650

External references