A074443 Number of 6-ary Lyndon words of length n with trace 3 and subtrace 3 over Z_6.

0, 0, 0, 9, 42, 207, 1157, 5832, 29151, 157464, 894829, 5080293, 28421280, 157913897, 877515282, 4897760256, 27541503360, 156068518554, 889046473445, 5077997833419, 29045467515255, 166351313967709, 954256949236825, 5484299577441192, 31581615565250142

Offset

1,4

Links

Table of n, a(n) for n=1..25.

Max Alekseyev, PARI/GP scripts for miscellaneous math problems

F. Ruskey 6-ary Lyndon words with given trace and subtrace

Crossrefs

Cf. A074422, A074423, A074424, A074425, A074426, A074427, A074428, A074429, A074430, A074431, A074432, A074433, A074434, A074435, A074436, A074437, A074438, A074439, A074440, A074441, A074442, A074444, A074445.

Sequence in context: A084899 A268622 A289364 * A221425 A007227 A224836

Adjacent sequences: A074440 A074441 A074442 * A074444 A074445 A074446

Keyword

easy,nonn

Author

Frank Ruskey and Nate Kube, Aug 23 2002

Extensions

Terms a(11) onwards from Max Alekseyev, Feb 20 2010

Status

approved