Number of zero-sum nX3 -3..3 arrays with every element unequal to at most two horizontal and vertical neighbors.
A201956
Number of zero-sum nX3 -3..3 arrays with every element unequal to at most two horizontal and vertical neighbors.
Terms
- a(0) =37a(1) =1587a(2) =17091a(3) =303955a(4) =4735345a(5) =85454789a(6) =1489376611a(7) =27222524599a(8) =493561989579
External references
- oeis: A201956