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%I M5411 #24 Jul 11 2023 12:38:05
%S 1,196,11196,307960,5157098,60112692,530962446,3764727340,22326282261,
%T 114158490576,515063238810,2087929609236,7714649716552,26285397502428,
%U 83379798088110,248202756212336,697998155989501,1864955619299196
%N Antichains (or order ideals) in the poset 2*2*5*n or size of the distributive lattice J(2*2*5*n)
%D J. Berman and P. Koehler, Cardinalities of finite distributive lattices, Mitteilungen aus dem Mathematischen Seminar Giessen, 121 (1976), 103-124.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H J. Berman and P. Koehler, <a href="/A006356/a006356.pdf">Cardinalities of finite distributive lattices</a>, Mitteilungen aus dem Mathematischen Seminar Giessen, 121 (1976), 103-124. [Annotated scanned copy]
%H G. Kreweras, <a href="http://www.numdam.org/item?id=MSH_1976__53__5_0">Les préordres totaux compatibles avec un ordre partiel</a>, Math. Sci. Humaines No. 53 (1976), 5-30.
%H <a href="/index/Pos#posets">Index entries for sequences related to posets</a>
%Y Cf. A000372, A056932, A006360, A006361, A056933, A056934, A056935, A056936, A056937.
%K nonn,easy
%O 0,2
%A _N. J. A. Sloane_.
%E More terms from _Mitch Harris_, Jul 16 2000
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