Number of nX3 zero-sum -3..3 arrays with rows and columns lexicographically nondecreasing.
A201985
Number of nX3 zero-sum -3..3 arrays with rows and columns lexicographically nondecreasing.
Terms
- a(0) =8a(1) =1170a(2) =134217a(3) =11648559a(4) =803133854a(5) =46034224561
External references
- oeis: A201985