T(n,k) is the number of (n+1) X (k+1) 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.

A204713

T(n,k) is the number of (n+1) X (k+1) 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.

Terms

    a(0) =7a(1) =13a(2) =13a(3) =25a(4) =33a(5) =25a(6) =49a(7) =81a(8) =81a(9) =49a(10) =97a(11) =209a(12) =257a(13) =209a(14) =97a(15) =193a(16) =529a(17) =833a(18) =833a(19) =529a(20) =193a(21) =385a(22) =1361a(23) =2689a(24) =3473a(25) =2689a(26) =1361a(27) =385a(28) =769a(29) =3473

External references