Numerator of 1 - Sum_{i=1..n} |Bernoulli(i)|.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =3a(6) =29a(7) =29a(8) =17a(9) =17a(10) =193a(11) =193a(12) =-123a(13) =-123a(14) =-2687a(15) =-2687a(16) =-202863a(17) =-202863a(18) =-307072861a(19) =-307072861a(20) =-34827193a(21) =-34827193a(22) =-13759888463a(23) =-13759888463a(24) =-90168938889a(25) =-90168938889