Triangle read by rows: coefficients of the polynomials A_{1,7}(n,k).

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =1a(6) =0a(7) =13a(8) =34a(9) =13a(10) =0a(11) =19a(12) =89a(13) =89a(14) =19a(15) =0a(16) =1235a(17) =8788a(18) =15858a(19) =8788a(20) =1235a(21) =0a(22) =155a(23) =1527a(24) =4222a(25) =4222a(26) =1527a(27) =155