|
| |
|
|
A074418
|
|
Number of 5-ary Lyndon words of length n over Z_5 with trace 1 and subtrace 1.
|
|
7
| |
|
|
0, 0, 2, 6, 25, 99, 450, 1965, 8736, 39050, 177500, 813490, 3756250, 17438400, 81380200
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,3
|
|
|
COMMENTS
| Same as number of Lyndon words of length n over Z_5 with trace 2 and subtrace 4; trace 3 and subtrace 4; trace 4 and subtrace 1. Same as number of Lyndon words of length n over GF(5) with trace 1 and subtrace 1; trace 2 and subtrace 4; trace 3 and subtrace 4; trace 4 and subtrace 1.
|
|
|
LINKS
| F. Ruskey, 5-ary Lyndon words of given trace and subtrace
F. Ruskey, 5-ary Lyndon words of given trace and subtrace over GF(5)
|
|
|
EXAMPLE
| a(3;2,4)=2 since the two 5-ary Lyndon words of trace 2, subtrace 4 and length 3 are ( 124, 142 }.
|
|
|
CROSSREFS
| Cf. A074414, A074415, A074416, A074417, A074419, A074420, A074421.
Sequence in context: A019048 A028302 A064811 * A003454 A199241 A014277
Adjacent sequences: A074415 A074416 A074417 * A074419 A074420 A074421
|
|
|
KEYWORD
| easy,nonn
|
|
|
AUTHOR
| Frank Ruskey, Nate Kube (ruskey(AT)cs.uvic.ca), Aug 22 2002
|
| |
|
|
