Number of n X n X n triangular 0..3 arrays with some element plus some adjacent element totalling 3+1 or 3-1 exactly once.
A270601
Number of n X n X n triangular 0..3 arrays with some element plus some adjacent element totalling 3+1 or 3-1 exactly once.
Terms
- a(0) =0a(1) =36a(2) =312a(3) =8808a(4) =443088a(5) =44168712a(6) =8708857332
External references
- oeis: A270601