G.f.s of the z^p coefficients of the polynomials in the GF1 denominators of A156921.

Terms

a(0) =1a(1) =1a(2) =1a(3) =7a(4) =26a(5) =7a(6) =3a(7) =166a(8) =951a(9) =951a(10) =166a(11) =3a(12) =263a(13) =8999a(14) =59637a(15) =108602a(16) =59637a(17) =8999a(18) =263a(19) =174a(20) =33124a(21) =848555a(22) =6062651a(23) =15477896a(24) =15477896a(25) =6062651a(26) =848555a(27) =33124a(28) =174a(29) =45