Number of (n+1)X8 0..2 arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors.

A186470

Number of (n+1)X8 0..2 arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors.

Terms

    a(0) =3078a(1) =2937a(2) =9982a(3) =14883a(4) =40626a(5) =49407a(6) =136086a(7) =170811a(8) =431658a(9) =564459a(10) =1356918a(11) =1931673a(12) =4382606a(13) =6664633a(14) =14283484a(15) =22714258a(16) =46720546a(17) =76914734a(18) =153497652a(19) =259317918a(20) =505928220a(21) =871401594a(22) =1671620876a(23) =2921206834a(24) =5533505212

External references