FP3 polynomials related to the generating functions of the columns of the A156921 matrix.

Terms

a(0) =1a(1) =1a(2) =1a(3) =-6a(4) =29a(5) =31a(6) =-283a(7) =245a(8) =298a(9) =-286a(10) =-108a(11) =119a(12) =-3106a(13) =29469a(14) =-104585a(15) =-220481a(16) =3601363a(17) =-15487305a(18) =34949165a(19) =-39821950a(20) =4356011a(21) =46881744a(22) =-51274736a(23) =9005908a(24) =14663472a(25) =-5205168a(26) =-1456704a(27) =-20736