1/729 the number of (n+2)X5 0..2 arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace.

A185885

1/729 the number of (n+2)X5 0..2 arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace.

Terms

    a(0) =12900a(1) =1367896a(2) =151319356a(3) =16772497838

External references