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Tiling by Squares
- Squared Squares
- Squared Rectangles
  - Simple Perfects
  - Simple Imperfects
    - (1) SISR Order 9
    - (9) SISRs Order 12
    - (33) SISRs Order 13
    - (104) SISRs Order 14
    - (280) SISRs Order 15
    - (948) SISRs Order 16
    - (3014) SISRs Order 17
    - (9494) SISRs Order 18
    - (30302) SISRs Order 19
    - (98897) SISRs Order 20
Tiling by Triangles
History and Theory
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SISRs , Order 20; o20sisrs.ps.zip