Triangle read by rows: with a(n,m,k) defined in A091969: T(n,m)=a(n, 2^(n - 1), 2^(m - 1)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =0a(4) =1a(5) =1a(6) =0a(7) =1a(8) =4a(9) =4a(10) =0a(11) =0a(12) =4a(13) =28a(14) =28a(15) =0a(16) =0a(17) =0a(18) =76a(19) =550a(20) =550a(21) =0a(22) =0a(23) =0a(24) =0a(25) =4465a(26) =28456a(27) =28456a(28) =0a(29) =0