%I #17 Jun 01 2022 14:45:22
%S 1,336,30900,1301610,32046856,530962446,6479344016,61951251333,
%T 485198553532,3217462615688,18528857431906,94529315562186,
%U 434088353496446,1817613939845670,7014049051387480,25167786776727516
%N Antichains (or order ideals) in the poset 2*2*6*n or size of the distributive lattice J(2*2*6*n)
%D Berman and Koehler, Cardinalities of finite distributive lattices, Mitteilungen aus dem Mathematischen Seminar Giessen, 121 (1976), p. 103-124
%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 <a href="/index/Pos#posets">Index entries for sequences related to posets</a>
%Y Cf. A000372, A006360, A006361, A006362, A056932, A056934, A056935, A056936, A056937.
%K nonn,easy
%O 0,2
%A _Mitch Harris_