cosh(tanh(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+19/4!*x^4-140/5!*x^5...

A013126

cosh(tanh(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+19/4!*x^4-140/5!*x^5...

Terms

    a(0) =1a(1) =0a(2) =4a(3) =-6a(4) =19a(5) =-140a(6) =814a(7) =-5082a(8) =43509a(9) =-400248a(10) =3812904a(11) =-42180270a(12) =520553895a(13) =-6701464068a(14) =92507196786

External references