622551

Appears in sequences

• a(n) = A078218(n)/n.at n=19A078810
• T(n,k)=Number of (n+2)X(k+2) 0..6 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.at n=17A186572
• T(n,k)=Number of (n+2)X(k+2) 0..6 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.at n=18A186572