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A211933
Number of distinct regular languages over binary alphabet, whose minimum regular expression has alphabetic width n.
0
2, 6, 56, 612, 7923, 114554, 1768133
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..7.
Hermann Gruber, Jonathan Lee, and Jeffrey Shallit, Enumerating regular expressions and their languages, arXiv:1204.4982v1 [cs.FL]
CROSSREFS
Sequence in context: A354315 A000146 A318001 * A167010 A014070 A320287
Adjacent sequences: A211930 A211931 A211932 * A211934 A211935 A211936
KEYWORD
nonn
AUTHOR
Hermann Gruber, Apr 25 2012
STATUS
approved

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Last modified September 28 09:05 EDT 2024. Contains 376288 sequences.
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