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A074421
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Number of 5-ary Lyndon words of length n over Z_5 with trace 1 and subtrace 4.
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7
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0, 0, 2, 7, 25, 99, 432, 1935, 8666, 39050, 177500, 813748, 3756250, 17439507, 81380200
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| Same as number of Lyndon words of length n over Z_5 with trace 2 and subtrace 1; trace 3 and subtrace 1; trace 4 and subtrace 4. Same as number of Lyndon words of length n over GF(5) with trace 1 and subtrace 4; trace 2 and subtrace 1; trace 3 and subtrace 1; trace 4 and subtrace 4.
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LINKS
| F. Ruskey, 5-ary Lyndon words of given trace and subtrace
F. Ruskey, 5-ary Lyndon words of given trace and subtrace over GF(5)
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EXAMPLE
| a(4;3,1)=7 since the seven 5-ary Lyndon words of trace 3, subtrace 1 and length 4 are { 0044, 0233, 0323, 0332, 1124, 1142, 1214 }.
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CROSSREFS
| Cf. A074414, A074415, A074416, A074417, A074418, A074419, A074420.
Sequence in context: A150476 A150477 A151537 * A150478 A150479 A150480
Adjacent sequences: A074418 A074419 A074420 * A074422 A074423 A074424
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KEYWORD
| easy,nonn
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AUTHOR
| Frank Ruskey, Nate Kube (ruskey(AT)cs.uvic.ca), Aug 22 2002
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