Number of (n+2) X 7 0..2 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.

A186564

Number of (n+2) X 7 0..2 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.

Terms

    a(0) =12122a(1) =2617a(2) =4807a(3) =11557a(4) =21007a(5) =23389a(6) =27391a(7) =33445a(8) =44263a(9) =68269a(10) =104335a(11) =154693a(12) =256359a(13) =394253a(14) =582367a(15) =921109a(16) =1404439a(17) =2088925a(18) =3277999a(19) =5032037a(20) =7564615a(21) =11783853a(22) =18099679a(23) =27341557a(24) =42334903a(25) =65029501a(26) =98641359a(27) =152194629

External references