A074438 Number of 6-ary Lyndon words of length n with trace 2 and subtrace 4 over Z_6.

0, 0, 1, 2, 25, 214, 1296, 6552, 33048, 169987, 894829, 4881168, 27433728, 155483424, 877515379, 4933761408, 27757515151, 156728297088, 889181991936, 5068079700940, 28988793435209, 166191833516125, 954256949236825, 5486915505475584, 31596861676172076

Offset

1,4

Comments

Same as the number of 6-ary Lyndon words of length n with trace 4 and subtrace 4 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, A074428, A074429, A074430, A074431, A074432, A074433, A074434, A074435, A074436, A074437, A074439, A074440, A074441, A074442, A074443, A074444, A074445.

Sequence in context: A094218 A203767 A206392 * A068176 A131585 A042919

Adjacent sequences: A074435 A074436 A074437 * A074439 A074440 A074441

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