sec(arctanh(x)*exp(x))=1+1/2!*x^2+6/3!*x^3+37/4!*x^4+260/5!*x^5...

A012719

sec(arctanh(x)*exp(x))=1+1/2!*x^2+6/3!*x^3+37/4!*x^4+260/5!*x^5...

Terms

    a(0) =1a(1) =0a(2) =1a(3) =6a(4) =37a(5) =260a(6) =2365a(7) =24850a(8) =301033a(9) =4051848a(10) =60901145a(11) =1003420638a(12) =18072389069a(13) =352027414284

External references