Number of length-n 0..4 arrays with no repeated value equal to the previous repeated value.
A269463
Number of length-n 0..4 arrays with no repeated value equal to the previous repeated value.
Terms
- a(0) =5a(1) =25a(2) =120a(3) =580a(4) =2780a(5) =13300a(6) =63420a(7) =301780a(8) =1433180a(9) =6795700a(10) =32180220a(11) =152216980a(12) =719335580a(13) =3396714100a(14) =16028713020a(15) =75595396180a(16) =356358069980
External references
- oeis: A269463