Number of 0..6 arrays of length n with each element differing from at least one neighbor by something other than 1.

A221571

Number of 0..6 arrays of length n with each element differing from at least one neighbor by something other than 1.

Terms

    a(0) =0a(1) =37a(2) =197a(3) =1369a(4) =8991a(5) =59705a(6) =395641a(7) =2622817a(8) =17385993a(9) =115249117a(10) =763966685a(11) =5064207645a(12) =33569783613a(13) =222528473325

External references