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A074403 Number of 4-ary Lyndon words of length n over Z_4 with trace 0 and subtrace 1. 11
0, 0, 2, 6, 16, 45, 128, 448, 1706, 6528, 24576, 90110, 327680, 1198665, 4438966, 16646144, 62914560, 238605640, 905969664, 3442684722, 13102206738, 49977848925, 191126044672, 732649837760, 2814062572336, 10825959997440, 41705086880768, 160862477970870 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..28.

F. Ruskey, 4-ary Lyndon words of given trace and subtrace

Max Alekseyev, PARI/GP scripts for miscellaneous math problems

CROSSREFS

Cf. A068596, A074404, A074405, A074406, A074407, A074408, A074409, A074410, A074411, A074412, A074413.

Sequence in context: A026163 A005717 A025266 * A290953 A151391 A166896

Adjacent sequences:  A074400 A074401 A074402 * A074404 A074405 A074406

KEYWORD

easy,nonn

AUTHOR

Frank Ruskey and Nate Kube, Aug 22 2002

EXTENSIONS

Terms a(16) onward from Max Alekseyev, Apr 09 2013

STATUS

approved

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Last modified October 20 15:22 EDT 2018. Contains 316388 sequences. (Running on oeis4.)