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Search: id:A006326
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A006326 Total preorders.
(Formerly M3931)
+0
2
1, 5, 24, 122, 680, 4155, 27776 (list; graph; listen)
OFFSET

3,2

REFERENCES

G. Kreweras, Les preordres totaux compatibles avec un ordre partiel. Math. Sci. Humaines No. 53 (1976), 5-30.

CROSSREFS

Sequence in context: A017977 A017978 A055825 this_sequence A058120 A000349 A036919

Adjacent sequences: A006323 A006324 A006325 this_sequence A006327 A006328 A006329

KEYWORD

nonn

AUTHOR

njas

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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