Expansion of cos(x*log(1+x)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =-12a(5) =60a(6) =-330a(7) =2100a(8) =-13664a(9) =96768a(10) =-747720a(11) =6233040a(12) =-55757592a(13) =529420320a(14) =-5249506080a(15) =53003714400a(16) =-519287424000