Number of length-n 0..6 arrays with no repeated value equal to the previous repeated value, with new values introduced in sequential order.
A268954
Number of length-n 0..6 arrays with no repeated value equal to the previous repeated value, with new values introduced in sequential order.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =12a(4) =40a(5) =154a(6) =656a(7) =3073a(8) =15579a(9) =84572a(10) =485726a(11) =2918103a(12) =18146537a(13) =115772922a(14) =752410412a(15) =4954432229a(16) =32923518967a(17) =220172576536
External references
- oeis: A268954