A026736 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | | | 1 | | 3 | | 3 | | 1 |
| | | | | | | | | 1 | | 5 | | 6 | | 4 | | 1 |
| | | | | | | | 1 | | 6 | | 11 | | 10 | | 5 | | 1 |
| | | | | | | 1 | | 7 | | 22 | | 21 | | 15 | | 6 | | 1 |
| | | | | | 1 | | 8 | | 29 | | 43 | | 36 | | 21 | | 7 | | 1 |
| | | | | 1 | | 9 | | 37 | | 94 | | 79 | | 57 | | 28 | | 8 | | 1 |
| | | | 1 | | 10 | | 46 | | 131 | | 173 | | 136 | | 85 | | 36 | | 9 | | 1 |
| | | 1 | | 11 | | 56 | | 177 | | 398 | | 309 | | 221 | | 121 | | 45 | | 10 | | 1 |
| | 1 | | 12 | | 67 | | 233 | | 575 | | 707 | | 530 | | 342 | | 166 | | 55 | | 11 | | 1 |
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A026736 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
| | 1 | 3 | 6 | 11 | 22 | 29 | 37 | 46 | 56 | 67
| | 1 | 4 | 10 | 21 | 43 | 94 | 131 | 177 | 233
| | 1 | 5 | 15 | 36 | 79 | 173 | 398 | 575
| | 1 | 6 | 21 | 57 | 136 | 309 | 707
| | 1 | 7 | 28 | 85 | 221 | 530
| | 1 | 8 | 36 | 121 | 342
| | 1 | 9 | 45 | 166
| | 1 | 10 | 55
| | 1 | 11
| | 1
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A026736 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
| | | 1 | 3 | 6 | 11 | 22 | 29 | 37 | 46 | 56 | 67
| | | | 1 | 4 | 10 | 21 | 43 | 94 | 131 | 177 | 233
| | | | | 1 | 5 | 15 | 36 | 79 | 173 | 398 | 575
| | | | | | 1 | 6 | 21 | 57 | 136 | 309 | 707
| | | | | | | 1 | 7 | 28 | 85 | 221 | 530
| | | | | | | | 1 | 8 | 36 | 121 | 342
| | | | | | | | | 1 | 9 | 45 | 166
| | | | | | | | | | 1 | 10 | 55
| | | | | | | | | | | 1 | 11
| | | | | | | | | | | | 1
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