Number of nXnXn triangular 0..1 arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all equal.
A271069
Number of nXnXn triangular 0..1 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) =13a(3) =138a(4) =1628a(5) =23527a(6) =435147a(7) =10546164a(8) =339692832a(9) =14675385285a(10) =855707505235
External references
- oeis: A271069