Atlas of subgroup lattices of finite almost simple groups

Subgroup lattice of O'N

Click here for the subgroup lattice computed by Leemans in On computing the subgroup lattice of O'N, 23 pages, 2010, unpublished.

Click here for the subgroup lattice computed by the programs described in Connor, T. and Leemans, D, An atlas of subgroup lattices of finite almost simple groups, Preprint, 6 pages, 2013.