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Timeline for Count of lattices on finite set

Current License: CC BY-SA 2.5

11 events
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Nov 1, 2010 at 13:38 vote accept tomas.lang
Nov 1, 2010 at 13:37 comment added tomas.lang I mean lattice as poset in which any two elements have a unique supremum and infimum.
Nov 1, 2010 at 13:35 history edited tomas.lang CC BY-SA 2.5
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Oct 30, 2010 at 22:48 history edited Gerry Myerson CC BY-SA 2.5
corrected spelling
Oct 30, 2010 at 18:53 history edited JBL
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Oct 30, 2010 at 18:12 comment added JBL Ah, I see, it's just that $n \leq 2$ and $n \leq 4$ are meant to be $n \geq 2$ and $n \geq 4$.
Oct 30, 2010 at 15:30 comment added JBL (Part of the reason it's not clear is that for either interpretation, at least one of the bounds you've written down is wrong.)
Oct 30, 2010 at 15:27 answer added Bjørn Kjos-Hanssen timeline score: 2
Oct 30, 2010 at 15:20 comment added JBL It's not clear what sort of lattice you're looking for. Lattices (posets) on unlabeled nodes are at oeis.org/A006966 -- on labeled nodes are oeis.org/A055512 $$ $$ I found this by putting the word "lattice" and the first few terms (computed by hand) into the OEIS: oeis.org/Seis.html
Oct 30, 2010 at 14:52 history edited tomas.lang CC BY-SA 2.5
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Oct 30, 2010 at 14:16 history asked tomas.lang CC BY-SA 2.5