Numerators of s(i) = s(i-1) - (1/i)*sign(s(i-1)) with s(1) = 1.

Terms

a(0) =1a(1) =1a(2) =1a(3) =-1a(4) =7a(5) =-1a(6) =13a(7) =-9a(8) =199a(9) =-53a(10) =1937a(11) =-373a(12) =22871a(13) =-2869a(14) =4231a(15) =-547a(16) =134845a(17) =-1291a(18) =2425919a(19) =489967a(20) =-10595393a(21) =-13913a(22) =232472561a(23) =9379691a(24) =-1023947321a(25) =5712079a(26) =-2957435363a(27) =-89098463a(28) =77729577773a(29) =93259013