T(n,k)=Number of (n+2)X(k+2) 0..5 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.

A186570

T(n,k)=Number of (n+2)X(k+2) 0..5 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.

Terms

    a(0) =10077696a(1) =12828a(2) =12828a(3) =299556a(4) =1441a(5) =299556a(6) =741024a(7) =5545a(8) =5545a(9) =741024a(10) =2309831a(11) =65919a(12) =64794a(13) =65919a(14) =2309831a(15) =4364050a(16) =155193a(17) =242568a(18) =242568a(19) =155193a(20) =4364050a(21) =6628076a(22) =203371a(23) =355246a(24) =1831246a(25) =355246a(26) =203371a(27) =6628076a(28) =7396218a(29) =229951

External references