Number of nX3 1..4 arrays with no element with value z exactly a city block distance of z from another element with value z.
A210783
Number of nX3 1..4 arrays with no element with value z exactly a city block distance of z from another element with value z.
Terms
- a(0) =53a(1) =1533a(2) =21379a(3) =142627a(4) =748627a(5) =3846906a(6) =23759000a(7) =197838865a(8) =1811137986a(9) =15107056679a(10) =115124207482a(11) =786166311691
External references
- oeis: A210783