Number of 3 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.

A293089

Number of 3 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.

Terms

    a(0) =0a(1) =1a(2) =53a(3) =486a(4) =4091a(5) =32070a(6) =246852a(7) =1897509a(8) =14578434a(9) =112390406a(10) =867693603a(11) =6716080364a(12) =52061270779a(13) =404329966577

External references