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

A230569

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

Terms

    a(0) =0a(1) =2a(2) =868a(3) =93450a(4) =8554108a(5) =765537650a(6) =67978636208

External references