Number of 4-divided words of length n over a 3-letter alphabet.
A210325
Number of 4-divided words of length n over a 3-letter alphabet.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =6a(5) =56a(6) =343a(7) =1534a(8) =6067a(9) =22162a(10) =76899a(11) =257792a(12) =843616a(13) =2712241a(14) =8606426a(15) =27040628a(16) =84311895
External references
- oeis: A210325