Number of nXnXn triangular 0..3 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors.
A214347
Number of nXnXn triangular 0..3 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors.
Terms
- a(0) =4a(1) =36a(2) =660a(3) =23554a(4) =1602092a(5) =205613460a(6) =49555044358
External references
- oeis: A214347