Triangle T(n, k) = number of non-equivalent (mod D_4) binary n X n matrices with k pairwise not adjacent 1's; k=0,...,n^2.

A232569

Triangle T(n, k) = number of non-equivalent (mod D_4) binary n X n matrices with k pairwise not adjacent 1's; k=0,...,n^2.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =0a(6) =0a(7) =1a(8) =3a(9) =6a(10) =6a(11) =3a(12) =1a(13) =0a(14) =0a(15) =0a(16) =0a(17) =1a(18) =3a(19) =17a(20) =40a(21) =62a(22) =45a(23) =20a(24) =4a(25) =1a(26) =0a(27) =0a(28) =0a(29) =0

External references