T(n,k) is the number of (n+1) X (k+1) 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2 X 2 permanents nonzero.

A204740

T(n,k) is the number of (n+1) X (k+1) 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2 X 2 permanents nonzero.

Terms

    a(0) =7a(1) =15a(2) =15a(3) =31a(4) =43a(5) =31a(6) =63a(7) =115a(8) =115a(9) =63a(10) =127a(11) =304a(12) =409a(13) =304a(14) =127a(15) =255a(16) =787a(17) =1389a(18) =1389a(19) =787a(20) =255a(21) =511a(22) =2033a(23) =4658a(24) =6176a(25) =4658a(26) =2033a(27) =511a(28) =1023a(29) =5219

External references