Number of primitive (aperiodic) word structures of length n using a 6-ary alphabet.
A056277
Number of primitive (aperiodic) word structures of length n using a 6-ary alphabet.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =13a(4) =51a(5) =197a(6) =875a(7) =4096a(8) =20643a(9) =109246a(10) =601491a(11) =3402911a(12) =19628063a(13) =114699438a(14) =676207572a(15) =4010086352a(16) =23874362199a(17) =142508702805a(18) =852124263683
External references
- oeis: A056277