Number of nXnXn triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= 15.
A166210
Number of nXnXn triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= 15.
Terms
- a(0) =1a(1) =16a(2) =6a(3) =27a(4) =977a(5) =6434a(6) =146337a(7) =20390870a(8) =470828929a(9) =56179164262
External references
- oeis: A166210