Number of nX3 0..2 arrays with row sums equal and column sums unequal to adjacent columns.
A203486
Number of nX3 0..2 arrays with row sums equal and column sums unequal to adjacent columns.
Terms
- a(0) =12a(1) =80a(2) =624a(3) =3760a(4) =25002a(5) =171068a(6) =1107888a(7) =7411872a(8) =50469114a(9) =335270710a(10) =2266967088a(11) =15497479060a(12) =104719636176a(13) =715192200880
External references
- oeis: A203486