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A074409
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Number of 4-ary Lyndon words of length n over Z_4 with trace 1 and subtrace 3.
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12
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0, 0, 1, 4, 16, 53, 160, 512, 1706, 6144, 23133, 87380, 327680, 1217097, 4508328, 16777216, 62914560, 237677216, 902444517, 3435973836, 13102206738, 50026607709, 191312691200, 733007751680, 2814062572336, 10823317585920, 41694907460224, 160842843834660
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OFFSET
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1,4
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COMMENTS
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Same as the number of 4-ary Lyndon words of length n over Z_4 with trace 3 and subtrace 3.
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LINKS
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EXAMPLE
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a(4;3,3)=4 since the four 4-ary Lyndon words of trace 3, subtrace 3 and length 4 are { 0111, 0133, 0313, 0331 }.
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CROSSREFS
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Cf. A068596, A074403, A074404, A074405, A074406, A074407, A074408, A074410, A074411, A074412, A074413.
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KEYWORD
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easy,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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