Number of 10X10X10 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n.
A166218
Number of 10X10X10 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n.
Terms
- a(0) =1a(1) =101a(2) =3980a(3) =104510a(4) =1598732a(5) =16474555a(6) =140020892a(7) =931368996a(8) =5087344969a(9) =25012399727a(10) =106992734072a(11) =406769105056
External references
- oeis: A166218