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A019471
Maximum number of states needed to accept an n-th order approximation to a language over (0+1)^*, n=1..infinity.
0
2, 4, 7, 13, 21, 37
OFFSET
0,1
COMMENTS
Ranges of next terms are [ 68,69 ], [ 128,133 ], [ 247,255 ], [ 378,383 ].
REFERENCES
J. Shallit and Y. Breitbart, Automaticity I: Properties of a measure of descriptional complexity, J. Comput. Sys. Sci. 53 (1996), 10-25 (esp. p. 19).
CROSSREFS
Sequence in context: A026625 A026691 A018150 * A061257 A061255 A088111
KEYWORD
nonn
STATUS
approved