Number of unlabeled distributive lattices with n elements.
1, 1, 1, 1, 2, 3, 5, 8, 15, 26, 47, 82, 151, 269, 494, 891, 1639, 2978, 5483, 10006
2 seqfan posts
Mon Jan 19 20:39:16 CET 2009 [seqfan] Re: How to generate A000047?
Mon Jan 19 18:40:38 CET 2009 [seqfan] How to generate A000047?
Index of A-numbers in seqfan: by ascending order
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