Number of lower triangles of an n X n 0..7 array with new values introduced in row major order 0..7 and no element equal to more than two horizontal or vertical neighbors.

A194575

Number of lower triangles of an n X n 0..7 array with new values introduced in row major order 0..7 and no element equal to more than two horizontal or vertical neighbors.

Terms

    a(0) =1a(1) =5a(2) =194a(3) =110064a(4) =1237399743

External references