Number of n X 4 0..5 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 6, and upper left element zero.

A230726

Number of n X 4 0..5 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 6, and upper left element zero.

Terms

    a(0) =0a(1) =2a(2) =30a(3) =396a(4) =6212a(5) =95412a(6) =1459082a(7) =22379112a(8) =343179162a(9) =5262047702a(10) =80687972676

External references