A074442 Number of 6-ary Lyndon words of length n with trace 3 and subtrace 2 over Z_6.

0, 2, 6, 12, 36, 180, 1008, 5616, 31824, 176256, 940896, 5018112, 27433728, 153264960, 865095552, 4899999744, 27770211072, 157364529408, 892662156288, 5077739844402, 28987320651922, 166023914360832, 953309368018944, 5484206701412352, 31596861676172076

Offset

1,2

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, A074424, A074425, A074426, A074427, A074428, A074429, A074430, A074431, A074432, A074433, A074434, A074435, A074436, A074437, A074438, A074439, A074440, A074441, A074443, A074444, A074445.

Sequence in context: A202337 A189854 A189565 * A162589 A225957 A123045

Adjacent sequences: A074439 A074440 A074441 * A074443 A074444 A074445

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