A074436 Number of 6-ary Lyndon words of length n with trace 2 and subtrace 2 over Z_6.

0, 0, 1, 6, 36, 214, 1296, 6792, 33048, 165840, 883872, 4881168, 27433728, 155270016, 877515379, 4938274944, 27770211072, 156728297088, 889181991936, 5068337188146, 28988793435209, 166186204664832, 954240788994048, 5486915505475584, 31596861676172076

Offset

1,4

Comments

Same as the number of 6-ary Lyndon words of length n with trace 4 and subtrace 2 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 - A074445.

Sequence in context: A171280 A250348 A199525 * A036162 A061708 A216127

Adjacent sequences: A074433 A074434 A074435 * A074437 A074438 A074439

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