856428v
[Commentary:
Triangles and circles filled with rectilinear figures (rectangles or triangles),
in a way that can in principle be continued indefinitely.]
821 (411) |
822 (411v) |
823 (412) |
824 (412v) |
825 (413) |
826 (413v) |
827 (414) |
828 (414v) |
829 (415) |
830 (415v) |