CONTENTS

• The G, G', and I region
• The isolated components
• Bridges (at widths 5 and 6)
• Some of the larger tiles
• Some paths through the diagram
• More paths through the diagram
• Still more paths through the diagram
• Figures of cycle 2
• Figures of cycle 4
• Figures of cycle 6
• Figures with basic cycle 15
• Avatars of width 4
• The I' region
• The J region
• The K' region
• An early version of the de Bruijn diagram
• An improved version of the de Bruijn diagram
• A doubled version of the diagram
• The diagram with bilateral symmetry according to avatars
• Bruijn diagram
• s.dat - the linkage list for the de Bruijn diagram

traces - the number of loops for varying lengths

cycles - the shortest cycle for each node

summary - an overview of widths less than 7