|
Search: id:A074413
|
|
|
| A074413 |
|
Number of 4-ary Lyndon words of length n over Z_4 with trace 2 and subtrace 3. |
|
+0
12
|
|
| 0, 0, 2, 6, 16, 44, 128, 440, 1706, 6496, 24576, 90004, 327680, 1198336
(list; graph; listen)
|
|
|
OFFSET
|
1,3
|
|
|
LINKS
|
F. Ruskey, 4-ary Lyndon words of given trace and subtrace
|
|
EXAMPLE
|
a(4;2,3)=6 since the six 4-ary Lyndon words of trace 2, subtrace 3 and length 4 are { 0123, 0132, 0213, 0231, 0312, 0321 }.
|
|
CROSSREFS
|
Cf. A068596, A074403, A074404, A074405, A074406, A074407, A074408, A074409, A074410, A074411, A074412.
Sequence in context: A080953 A026134 A105696 this_sequence A055544 A126285 A026163
Adjacent sequences: A074410 A074411 A074412 this_sequence A074414 A074415 A074416
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Frank Ruskey, Nate Kube (fruskey(AT)cs.uvic.ca), Aug 22 2002
|
|
|
Search completed in 0.002 seconds
|
