A166293 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | | | 1 | | 3 | | 3 | | 1 |
| | | | | | | | | 1 | | 4 | | 7 | | 4 | | 1 |
| | | | | | | | 1 | | 5 | | 13 | | 12 | | 5 | | 1 |
| | | | | | | 1 | | 6 | | 22 | | 28 | | 18 | | 6 | | 1 |
| | | | | | 1 | | 7 | | 35 | | 59 | | 50 | | 25 | | 7 | | 1 |
| | | | | 1 | | 8 | | 54 | | 114 | | 124 | | 80 | | 33 | | 8 | | 1 |
| | | | 1 | | 9 | | 82 | | 210 | | 279 | | 226 | | 119 | | 42 | | 9 | | 1 |
| | | 1 | | 10 | | 124 | | 374 | | 592 | | 576 | | 375 | | 168 | | 52 | | 10 | | 1 |
| | 1 | | 11 | | 188 | | 653 | | 1199 | | 1374 | | 1062 | | 582 | | 228 | | 63 |
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A166293 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| | 1 | 3 | 7 | 13 | 22 | 35 | 54 | 82 | 124 | 188
| | 1 | 4 | 12 | 28 | 59 | 114 | 210 | 374 | 653
| | 1 | 5 | 18 | 50 | 124 | 279 | 592 | 1199
| | 1 | 6 | 25 | 80 | 226 | 576 | 1374
| | 1 | 7 | 33 | 119 | 375 | 1062
| | 1 | 8 | 42 | 168 | 582
| | 1 | 9 | 52 | 228
| | 1 | 10 | 63
| | 1
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A166293 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| | | 1 | 3 | 7 | 13 | 22 | 35 | 54 | 82 | 124 | 188
| | | | 1 | 4 | 12 | 28 | 59 | 114 | 210 | 374 | 653
| | | | | 1 | 5 | 18 | 50 | 124 | 279 | 592 | 1199
| | | | | | 1 | 6 | 25 | 80 | 226 | 576 | 1374
| | | | | | | 1 | 7 | 33 | 119 | 375 | 1062
| | | | | | | | 1 | 8 | 42 | 168 | 582
| | | | | | | | | 1 | 9 | 52 | 228
| | | | | | | | | | 1 | 10 | 63
| | | | | | | | | | | 1
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