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A074413
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Number of 4-ary Lyndon words of length n over Z_4 with trace 2 and subtrace 3.
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12
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0, 0, 2, 6, 16, 44, 128, 440, 1706, 6496, 24576, 90004, 327680, 1198336, 4438966, 16645120, 62914560, 238602228, 905969664, 3442672434, 13102206738, 49977802752, 191126044672, 732649663000, 2814062572336, 10825959342080, 41705086880768, 160862475536676
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OFFSET
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1,3
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LINKS
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EXAMPLE
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a(4;2,3)=6 since the six 4-ary Lyndon words of trace 2, subtrace 3 and length 4 are { 0123, 0132, 0213, 0231, 0312, 0321 }.
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CROSSREFS
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Cf. A068596, A074403, A074404, A074405, A074406, A074407, A074408, A074409, A074410, A074411, A074412.
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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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