A118077 Number of edges in the representation of all linear extensions of the inclusion ordering on P({1,...,n}) as distributive lattice contained in P(P({1,...,n})).
1, 2, 6, 32, 454, 35512, 66584412, 36566354210304
Offset: 0
Examples
a(2) = 6 as the lattice is { {}, { {} }, { {}, {1} }, { {}, {2} }, { {}, {1}, {2}}, { {}, {1}, {2}, {1, 2} } }.
Formula
a(n) = Sum_{m=1..C(n,floor(n/2))} A059119(n,m)*m. - Geoffrey Critzer, Aug 11 2020
Extensions
a(7) added by Geoffrey Critzer, Aug 11 2020 from A059119
a(7) corrected by Lennart Van Hirtum, Apr 02 2025
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