Number of nXnXn triangular 0..1 arrays with new values introduced in sequential zero-upwards order and exactly one inverted 2x2x2 triangle having values all equal.
A271400
Number of nXnXn triangular 0..1 arrays with new values introduced in sequential zero-upwards order and exactly one inverted 2x2x2 triangle having values all equal.
Terms
- a(0) =0a(1) =0a(2) =8a(3) =216a(4) =6048a(5) =203256a(6) =8627472a(7) =475098048a(8) =34505348760
External references
- oeis: A271400