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A230401 Number of nonisomorphic synchronizing binary n-state automata without output under input permutations. 0
1, 4, 51, 1115, 34265, 1318699, 60477844, 3210707626, 193589241468, 13070085476528 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
An automaton with the state set Q is synchronizing if there exists a word w such that |Qw|=1.
REFERENCES
A. Kisielewicz and M. Szykuła, Generating Small Automata and the Černý Conjecture, in Implementation and Application of Automata, volume 7982 of LNCS, pages 340-348, 2013.
LINKS
EXAMPLE
For n=2 there are 4 such automata:
[0 a 0,0 b 1,1 a 0,1 b 0],
[0 a 0,0 b 0,1 a 0,1 b 0],
[0 a 0,0 b 1,1 a 0,1 b 1], and
[0 a 0,0 b 0,1 a 1,1 b 0].
CROSSREFS
Sequence in context: A336608 A349653 A235325 * A293075 A300732 A220282
KEYWORD
nonn,hard,more
AUTHOR
Marek Szykula, Oct 18 2013
STATUS
approved

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Last modified June 9 11:22 EDT 2023. Contains 363178 sequences. (Running on oeis4.)