File:Dyck lattice D4.svg

Summary

Description

Hasse diagram of the Dyck lattice D4

The nodes correspond to the 14 Dyck words with 4 pairs of parentheses.

The number of elements per rank is 1,3,3,3,2,1,1 - that is row 4 of the triangle Sloane'sA227543.


Apart from the top vertex this is the same as .
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