Expansion of tan(log(1+x)^2).

Terms

a(0) =0a(1) =0a(2) =2a(3) =-6a(4) =22a(5) =-100a(6) =788a(7) =-8568a(8) =103416a(9) =-1307808a(10) =17722512a(11) =-264361680a(12) =4373968080a(13) =-79413478560