Number of nX1 1..6 arrays with no element with value z exactly a city block distance of z from another element with value z.

A209179

Number of nX1 1..6 arrays with no element with value z exactly a city block distance of z from another element with value z.

Terms

    a(0) =6a(1) =35a(2) =199a(3) =1094a(4) =5835a(5) =29917a(6) =147568a(7) =722298a(8) =3540171a(9) =17225406a(10) =84132756a(11) =409658476a(12) =2007252588a(13) =9843963671a(14) =48324194072a(15) =236930814716

External references