A074428 Number of 6-ary Lyndon words of length n with trace 1 and subtrace 0 over Z_6.

1, 2, 3, 9, 36, 162, 900, 5616, 33048, 178459, 940896, 5038848, 27546779, 153264960, 863910489, 4897760256, 27770211072, 157340548224, 892526107392, 5077739844402, 28988793435209, 166026726038016, 953309368018944, 5484237660094464, 31597040041716690

Offset

1,2

Comments

Same as the number of 6-ary Lyndon words of length n with trace 5 and subtrace 0 over Z_6.

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, A074429, A074430, A074431, A074432, A074433, A074434, A074435, A074436, A074437, A074438, A074439, A074440, A074441, A074442, A074443, A074444, A074445.

Sequence in context: A204442 A306523 A095412 * A328436 A125052 A181139

Adjacent sequences: A074425 A074426 A074427 * A074429 A074430 A074431

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