Number of nXnXn triangular 0..4 arrays with new values introduced in sequential zero-upwards order and exactly one upright 2x2x2 triangle having values all equal.
A271336
Number of nXnXn triangular 0..4 arrays with new values introduced in sequential zero-upwards order and exactly one upright 2x2x2 triangle having values all equal.
Terms
- a(0) =0a(1) =1a(2) =36a(3) =18054a(4) =71737645
External references
- oeis: A271336