Number of 14X14X14 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n.
A166222
Number of 14X14X14 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n.
Terms
- a(0) =1a(1) =2277a(2) =1973317a(3) =652489468a(4) =90909213960
External references
- oeis: A166222