A074422 Number of 6-ary Lyndon words of length n with trace 0 and subtrace 0 over Z_6.

1, 0, 0, 4, 25, 165, 1157, 6552, 33045, 167928, 894829, 4921380, 27546779, 155483424, 877515282, 4936018176, 27757515151, 156680520702, 889046473445, 5068079700940, 28988793431460, 166189019079168, 954256949236825, 5486977453011768, 31597040041716690

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. A074423, A074424, A074425, A074426, A074427, A074428, A074429, A074430, A074431, A074432, A074433, A074434, A074435, A074436, A074437, A074438, A074439, A074440, A074441, A074442, A074443, A074444, A074445.

Sequence in context: A357162 A184755 A357223 * A128419 A372216 A226945

Adjacent sequences: A074419 A074420 A074421 * A074423 A074424 A074425

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