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A074436
Number of 6-ary Lyndon words of length n with trace 2 and subtrace 2 over Z_6.
22
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.
CROSSREFS
Sequence in context: A171280 A250348 A199525 * A036162 A061708 A216127
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