1640007

Appears in sequences

• Number of nXnXn triangular 0..1 arrays with new values introduced in sequential zero-upwards order and exactly one upright 2x2x2 triangle having values all equal.at n=6A271333
• T(n,k)=Number of nXnXn triangular 0..k arrays with new values introduced in sequential zero-upwards order and exactly one upright 2x2x2 triangle having values all equal.at n=27A271339