Expansion of e.g.f.: arctan(arctan(x)+log(x+1))=2*x-1/2!*x^2-16/3!*x^3+42/4!*x^4+756/5!*x^5...
A012963
Expansion of e.g.f.: arctan(arctan(x)+log(x+1))=2*x-1/2!*x^2-16/3!*x^3+42/4!*x^4+756/5!*x^5...
Terms
- a(0) =0a(1) =2a(2) =-1a(3) =-16a(4) =42a(5) =756a(6) =-5130a(7) =-82584a(8) =1145256a(9) =15632064a(10) =-405336960a(11) =-4218834816a(12) =206734828608
External references
- oeis: A012963