Svoboda
|
Graniru
|
BBC Russia
|
Golosameriki
|
Facebook
login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A211937
Number of distinct regular languages over 4-ary alphabet, whose minimum regular expression has alphabetic width n
0
2, 12, 288, 9312, 357911
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..5.
Hermann Gruber, Jonathan Lee, and Jeffrey Shallit,
Enumerating regular expressions and their languages
, arXiv:1204.4982v1 [cs.FL]
CROSSREFS
Sequence in context:
A012754
A083568
A003121
*
A176037
A057170
A200564
Adjacent sequences:
A211934
A211935
A211936
*
A211938
A211939
A211940
KEYWORD
nonn
AUTHOR
Hermann Gruber
, Apr 25 2012
STATUS
approved
Lookup
|
Welcome
|
Wiki
|
Register
|
Music
|
Plot 2
|
Demos
|
Index
|
Browse
|
More
|
WebCam
Contribute new seq. or comment
|
Format
|
Style Sheet
|
Transforms
|
Superseeker
|
Recents
The OEIS Community
| Maintained by
The OEIS Foundation Inc.
License Agreements, Terms of Use, Privacy Policy.
.
Last modified August 21 22:08 EDT 2024. Contains 375353 sequences. (Running on oeis4.)