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A001827 Related to partially ordered sets.
(Formerly M3591 N1456) 		+0
1
1, 4, 22, 166, 1726, 24814, 494902 (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

Adjacent sequences: A001824 A001825 A001826 this_sequence A001828 A001829 A001830

Sequence in context: A121397 A067369 A113351 this_sequence A125863 A004115 A112370

KEYWORD

nonn

AUTHOR

njas

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

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