A074434 Number of 6-ary Lyndon words of length n with trace 2 and subtrace 0 over Z_6.

1, 1, 1, 4, 36, 214, 1157, 6312, 33048, 167928, 883872, 4881168, 27546779, 155696585, 877515379, 4936018176, 27770211072, 156728297088, 889046473445, 5067822213734, 28988793435209, 166189019079168, 954240788994048, 5486915505475584, 31597040041716690

Offset

1,4

Comments

Same as the number of 6-ary Lyndon words of length n with trace 4 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, A074428, A074429, A074430, A074431, A074432, A074433, A074435, A074436, A074437, A074438, A074439, A074440, A074441, A074442, A074443, A074444, A074445.

Sequence in context: A144888 A291643 A054773 * A257888 A197424 A306094

Adjacent sequences: A074431 A074432 A074433 * A074435 A074436 A074437

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