Number of nXnXn triangular 0..2 arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all equal and exactly one 2x2x2 triangle having values all different.

A271433

Number of nXnXn triangular 0..2 arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all equal and exactly one 2x2x2 triangle having values all different.

Terms

    a(0) =0a(1) =0a(2) =12a(3) =864a(4) =41328a(5) =2009952a(6) =116220672a(7) =8608449792a(8) =850781715456

External references