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A072361 Vertically indecomposable distributive lattices of size n. 1
0, 1, 0, 1, 0, 1, 0, 3, 1, 6, 2, 16, 8, 42, 28, 112, 93, 311, 295, 869, 939, 2454, 2931, 7032, 9036, 20301, 27701, 58929, 84413, 172104, 255919, 504637, 773511, 1484392, 2331180, 4378773, 7009288, 12944347, 21039961, 38328890, 63067623, 113651785, 188831922, 337361112, 564890985, 1002268019, 1688673026, 2979703035, 5045200597 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,8

LINKS

Table of n, a(n) for n=1..49.

M. Erné, J. Heitzig and J. Reinhold, On the number of distributive lattices, Electronic Journal of Combinatorics, 9 (2002), #R24.

CROSSREFS

Cf. A006982, A072407.

Sequence in context: A105358 A240691 A322387 * A145366 A145367 A124928

Adjacent sequences:  A072358 A072359 A072360 * A072362 A072363 A072364

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Aug 01 2002

EXTENSIONS

Word "distributive" added to the Name by Peter Jipsen, Mar 05 2013

STATUS

approved

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Last modified August 18 01:39 EDT 2019. Contains 326059 sequences. (Running on oeis4.)