Number of zero-sum nX4 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.
A201799
Number of zero-sum nX4 -2..2 arrays with every element unequal to at most two horizontal and vertical neighbors.
Terms
- a(0) =85a(1) =3617a(2) =48335a(3) =988589a(4) =20960485a(5) =472565771a(6) =10857153407a(7) =253641348337
External references
- oeis: A201799