A047140 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | | | 1 | | 1 | | 3 | | 1 |
| | | | | | | | | 1 | | 2 | | 4 | | 4 | | 1 |
| | | | | | | | 1 | | 3 | | 2 | | 8 | | 5 | | 1 |
| | | | | | | 1 | | 4 | | 5 | | 10 | | 13 | | 6 | | 1 |
| | | | | | 1 | | 5 | | 9 | | 15 | | 23 | | 19 | | 7 | | 1 |
| | | | | 1 | | 6 | | 14 | | 24 | | 38 | | 42 | | 26 | | 8 | | 1 |
| | | | 1 | | 7 | | 20 | | 38 | | 62 | | 80 | | 68 | | 34 | | 9 | | 1 |
| | | 1 | | 8 | | 27 | | 58 | | 38 | | 142 | | 148 | | 102 | | 43 | | 10 | | 1 |
| | 1 | | 9 | | 35 | | 85 | | 96 | | 180 | | 290 |
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A047140 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| | 1 | 3 | 4 | 2 | 5 | 9 | 14 | 20 | 27 | 35
| | 1 | 4 | 8 | 10 | 15 | 24 | 38 | 58 | 85
| | 1 | 5 | 13 | 23 | 38 | 62 | 38 | 96
| | 1 | 6 | 19 | 42 | 80 | 142 | 180
| | 1 | 7 | 26 | 68 | 148 | 290
| | 1 | 8 | 34 | 102
| | 1 | 9 | 43
| | 1 | 10
| | 1
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A047140 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| | | 1 | 3 | 4 | 2 | 5 | 9 | 14 | 20 | 27 | 35
| | | | 1 | 4 | 8 | 10 | 15 | 24 | 38 | 58 | 85
| | | | | 1 | 5 | 13 | 23 | 38 | 62 | 38 | 96
| | | | | | 1 | 6 | 19 | 42 | 80 | 142 | 180
| | | | | | | 1 | 7 | 26 | 68 | 148 | 290
| | | | | | | | 1 | 8 | 34 | 102
| | | | | | | | | 1 | 9 | 43
| | | | | | | | | | 1 | 10
| | | | | | | | | | | 1
| | | | | | | | | | |
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