Villegas-Zagier polynomials (listing coefficients from highest to lowest degree).

Terms

a(0) =0a(1) =1a(2) =-3a(3) =0a(4) =0a(5) =9a(6) =0a(7) =0a(8) =2a(9) =0a(10) =-27a(11) =0a(12) =0a(13) =-18a(14) =0a(15) =0a(16) =-2a(17) =81a(18) =0a(19) =0a(20) =108a(21) =0a(22) =0a(23) =36a(24) =0a(25) =0a(26) =-243a(27) =0a(28) =0a(29) =-540