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A074426
Number of 6-ary Lyndon words of length n with trace 0 and subtrace 4 over Z_6.
21
0, 0, 0, 2, 36, 236, 1296, 6792, 34272, 169987, 883872, 4861056, 27433728, 155270016, 876311654, 4933761408, 27770211072, 156752186112, 889181991936, 5068337188146, 28990266218496, 166191833516125, 954240788994048, 5486884531697664, 31596861676172076
OFFSET
1,4
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