Number of nXnXn triangular 0..6 arrays with new values introduced in sequential zero-upwards order and exactly one upright 2x2x2 triangle having values all equal.
A271338
Number of nXnXn triangular 0..6 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) =19788a(4) =201709343
External references
- oeis: A271338