Number of n X n 0..2 arrays with no element equal to any value at offset (-2,-1), (-1,1) or (0,-1) and new values introduced in order 0..2.

A276292

Number of n X n 0..2 arrays with no element equal to any value at offset (-2,-1), (-1,1) or (0,-1) and new values introduced in order 0..2.

Terms

    a(0) =1a(1) =4a(2) =45a(3) =1017a(4) =50949a(5) =4988145a(6) =1073114625a(7) =456837553545

External references