Catalogue of Almost Unitary Polyominoes
Introduction
A polyomino is a figure made of equal squares joined
edge to edge.
A unitary polyomino is one whose edges all have length 1;
see Catalogue of Unitary Polyominoes.
An almost unitary polyomino has just one edge of length
greater than 1.
See also the Catalogue of
Almost Almost Unitary Polyominoes.
Enumeration
| Cells | 4 | 7 | 8 | 9 | 10 | 11 | 12
| 13 | 14 | 15 | 16 | 17 | 18 |
|---|
Almost Unitary
Polyominoes
| 1 | 2 | 2 | 1 | 6 | 9 | 11 | 21
| 49 | 69 | 117 | 249 | 427
|
|---|
The shaded values were found by John Mason in 2023.
4 Cells
7 Cells
8 Cells
9 Cells
10 Cells
11 Cells
12 Cells
13 Cells
Last revised 2023-05-01.
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Col. George Sicherman
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