sec(arctan(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+83/4!*x^4-460/5!*x^5...

A012970

sec(arctan(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+83/4!*x^4-460/5!*x^5...

Terms

    a(0) =1a(1) =0a(2) =4a(3) =-6a(4) =83a(5) =-460a(6) =5470a(7) =-53130a(8) =722585a(9) =-9842040a(10) =159135400a(11) =-2720898950a(12) =51918624875

External references