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A001375 Relational systems on n nodes.
(Formerly M4589 N1958)
+0
1
8, 2080, 22386176, 11728394650624, 314824619911446167552 (list; graph; listen)
OFFSET

1,1

REFERENCES

W. Oberschelp, ``Strukturzahlen in endlichen Relationssystemen,'' in Contributions to Mathematical Logic (Proceedings 1966 Hanover Colloquium), pp. 199-213, North-Holland Publ., Amsterdam, 1968.

CROSSREFS

Adjacent sequences: A001372 A001373 A001374 this_sequence A001376 A001377 A001378

Sequence in context: A092414 A139298 A004819 this_sequence A017415 A046246 A017547

KEYWORD

nonn

AUTHOR

njas

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.


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