Number of 7X7X7 triangular 0..n arrays with some element plus some adjacent element totalling n+1 or n-1 exactly once.
A270612
Number of 7X7X7 triangular 0..n arrays with some element plus some adjacent element totalling n+1 or n-1 exactly once.
Terms
- a(0) =0a(1) =0a(2) =8708857332
External references
- oeis: A270612