Number of zero-sum nX3 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.
A201798
Number of zero-sum nX3 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.
Terms
- a(0) =19a(1) =455a(2) =4057a(3) =48335a(4) =562961a(5) =7099021a(6) =90062519a(7) =1168520339a(8) =15269686011a(9) =201396758073
External references
- oeis: A201798