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Search: id:A074409
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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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+0
12
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| 0, 0, 1, 4, 16, 53, 160, 512, 1706, 6144, 23133, 87380, 327680, 1217097
(list; graph; listen)
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OFFSET
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1,4
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COMMENT
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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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F. Ruskey, 4-ary Lyndon words of given trace and subtrace
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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.
Sequence in context: A100774 A107767 A087972 this_sequence A056589 A074407 A121159
Adjacent sequences: A074406 A074407 A074408 this_sequence A074410 A074411 A074412
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KEYWORD
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easy,nonn
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AUTHOR
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Frank Ruskey, Nate Kube (fruskey(AT)cs.uvic.ca), Aug 22 2002
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