Triangle read by rows: coefficients of the polynomials A_{1,5}(n,k).

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =1a(6) =0a(7) =3a(8) =8a(9) =3a(10) =0a(11) =13a(12) =63a(13) =63a(14) =13a(15) =0a(16) =663a(17) =4938a(18) =9038a(19) =4938a(20) =663a(21) =0a(22) =17a(23) =177a(24) =502a(25) =502a(26) =177a(27) =17