Number of 3-divided words of length n over a 4-letter alphabet.
A210425
Number of 3-divided words of length n over a 4-letter alphabet.
Terms
- a(0) =0a(1) =0a(2) =4a(3) =60a(4) =374a(5) =1960a(6) =9103a(7) =40497a(8) =174127a(9) =735268a(10) =3064477a(11) =12664101a(12) =52005445a(13) =212595280a(14) =866047122
External references
- oeis: A210425