Number of nXnXn triangular 0..3 arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all equal.
A271071
Number of nXnXn triangular 0..3 arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all equal.
Terms
- a(0) =0a(1) =1a(2) =35a(3) =11652a(4) =14051884a(5) =55113279071
External references
- oeis: A271071