Derived from 3.6.3.6, with added di-gons

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 8.57 (π/21)°.
• Contains one regular two-pointed star polygon with vertex angle of 25.71 (π/7)°.
• Contains one regular three-pointed star polygon with vertex angle of 34.28 (4π/21)°.
• Contains one regular 6-pointed star polygon with vertex angle of 94.28 (11π/21)°.
• The tiling satisfies the interlace condition and has no finite interlace and two infinite interlaces.
• The tiling is edge-to-edge.
• As drawn, contains about 81 polygons.

• Derived from figure 3.6.3.6 of B Grünbaum and G C Shephard. Tilings and Patterns, W H Freeman, 1987. ISBN 071671193. [gands] {Most important work in this area.}
• Uniform Star Polygons with Digons of B A Wichmann. The World of Patterns, World Scientific, 2001. ISBN 981024619. [wich2] {Only new patterns ascribed to this.}

v22