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A001828 Related to partially ordered sets.
(Formerly M3971 N1641) 		+0
1
1, 5, 33, 287, 3309, 50975, 1058493 (list; graph; listen)
OFFSET

0,2
REFERENCES

D. A. Klarner, The number of graded partially ordered sets, J. Combin. Theory, 6 (1969), 12-19.

LINKS

Index entries for sequences related to posets

CROSSREFS

Sequence in context: A049377 A129890 A120733 this_sequence A084845 A098460 A087618

Adjacent sequences: A001825 A001826 A001827 this_sequence A001829 A001830 A001831

KEYWORD

nonn

AUTHOR

njas

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Last modified September 6 09:40 EDT 2008. Contains 143480 sequences.

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