Number of 7X7X7 triangular 0..n arrays with some element plus some adjacent element totalling n exactly once.
A270262
Number of 7X7X7 triangular 0..n arrays with some element plus some adjacent element totalling n exactly once.
Terms
- a(0) =0a(1) =601368a(2) =168922341960
External references
- oeis: A270262