Number of nX5 0..5 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 6, and upper left element zero.

A230591

Number of nX5 0..5 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 6, and upper left element zero.

Terms

    a(0) =0a(1) =30a(2) =2966a(3) =225010a(4) =20908278a(5) =1902360932a(6) =166037342468

External references