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A074435 Number of 6-ary Lyndon words of length n with trace 2 and subtrace 1 over Z_6. 21
0, 0, 3, 8, 42, 214, 1008, 5094, 29160, 169987, 952560, 5196096, 28304640, 155483424, 863910489, 4857268896, 27541503360, 156728297088, 892662156288, 5087915629975, 29045467518171, 166191833516125, 953325512487936, 5481559804635648, 31581437286776820 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Same as the number of 6-ary Lyndon words of length n with trace 4 and subtrace 1 over Z_6.

LINKS

Table of n, a(n) for n=1..25.

F. Ruskey 6-ary Lyndon words with given trace and subtrace

Max Alekseyev, PARI/GP scripts for miscellaneous math problems

CROSSREFS

Cf. A074422, A074423, A074424, A074425, A074426, A074427, A074428, A074429, A074430, A074431, A074432, A074433, A074434, A074436, A074437, A074438, A074439, A074440, A074441, A074442, A074443, A074444, A074445.

Sequence in context: A128322 A038048 A051763 * A039647 A071533 A000240

Adjacent sequences:  A074432 A074433 A074434 * A074436 A074437 A074438

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

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Last modified October 25 23:29 EDT 2014. Contains 248566 sequences.