Numerator of the coefficient [x^1] of the Bernoulli twin number polynomial C(n,x).

Terms

a(0) =1a(1) =0a(2) =-1a(3) =-1a(4) =-1a(5) =1a(6) =1a(7) =-1a(8) =-3a(9) =3a(10) =5a(11) =-5a(12) =-691a(13) =691a(14) =35a(15) =-35a(16) =-3617a(17) =3617a(18) =43867a(19) =-43867a(20) =-1222277a(21) =1222277a(22) =854513a(23) =-854513a(24) =-1181820455a(25) =1181820455a(26) =76977927a(27) =-76977927a(28) =-23749461029a(29) =23749461029