Number of nX6 0..4 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero.

A230397

Number of nX6 0..4 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero.

Terms

    a(0) =0a(1) =8a(2) =9068a(3) =2467778a(4) =501998702a(5) =99394999376

External references