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A074424 Number of 6-ary Lyndon words of length n with trace 0 and subtrace 2 over Z_6. 21
0, 1, 2, 6, 36, 240, 1296, 6312, 31824, 165840, 883872, 4861056, 27433728, 155696585, 878719104, 4938274944, 27770211072, 156752183808, 889181991936, 5067822213734, 28987320651922, 166186204664832, 954240788994048, 5486884531697664, 31596861676172076 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

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

Max Alekseyev, PARI/GP scripts for miscellaneous math problems

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

CROSSREFS

Cf. A074422, A074423, A074425, A074426, A074427, A074428, A074429, A074430, A074431, A074432, A074433, A074434, A074435, A074436, A074437, A074438, A074439, A074440, A074441, A074442, A074443, A074444, A074445.

Sequence in context: A213918 A239889 A086325 * A002868 A002869 A052845

Adjacent sequences:  A074421 A074422 A074423 * A074425 A074426 A074427

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 December 14 01:27 EST 2019. Contains 329978 sequences. (Running on oeis4.)