Number of (n+1) X 6 binary arrays with every 2 X 2 subblock commuting with each of its horizontal and vertical 2 X 2 subblock neighbors.

A186458

Number of (n+1) X 6 binary arrays with every 2 X 2 subblock commuting with each of its horizontal and vertical 2 X 2 subblock neighbors.

Terms

    a(0) =106a(1) =128a(2) =270a(3) =449a(4) =797a(5) =1061a(6) =1681a(7) =2285a(8) =3681a(9) =5281a(10) =8437a(11) =12401a(12) =19317a(13) =28641a(14) =44073a(15) =65877a(16) =100705a(17) =151229a(18) =230209a(19) =346689a(20) =526453a(21) =794241a(22) =1204293a(23) =1818849a(24) =2755433a(25) =4164309a(26) =6305265a(27) =9533069a(28) =14429537a(29) =21821729

External references