Number of (n+1)X(n+1) 0..7 arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors.
A186489
Number of (n+1)X(n+1) 0..7 arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors.
Terms
- a(0) =4096a(1) =4834a(2) =269126a(3) =1024481a(4) =21122896a(5) =70300633a(6) =1381305433a(7) =5019710665a(8) =92758821369a(9) =358905890921
External references
- oeis: A186489