A131350 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 2 | | 1 |
| | | | | | | | | 1 | | 4 | | 1 |
| | | | | | | | 2 | | 4 | | 6 | | 1 |
| | | | | | | 1 | | 8 | | 9 | | 8 | | 1 |
| | | | | | 2 | | 7 | | 20 | | 16 | | 10 | | 1 |
| | | | | 1 | | 12 | | 24 | | 40 | | 25 | | 12 | | 1 |
| | | | 2 | | 10 | | 42 | | 60 | | 70 | | 36 | | 14 | | 1 |
| | | 1 | | 16 | | 46 | | 112 | | 125 | | 112 | | 49 | | 16 | | 1 |
| | 2 | | 13 | | 72 | | 148 | | 252 | | 231 | | 168 | | 64 | | 18 | | 1 |
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A131350 as a square array
| 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2
| | 1 | 4 | 4 | 8 | 7 | 12 | 10 | 16 | 13
| | 1 | 6 | 9 | 20 | 24 | 42 | 46 | 72
| | 1 | 8 | 16 | 40 | 60 | 112 | 148
| | 1 | 10 | 25 | 70 | 125 | 252
| | 1 | 12 | 36 | 112 | 231
| | 1 | 14 | 49 | 168
| | 1 | 16 | 64
| | 1 | 18
| | 1
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A131350 as an upper right triangle
| 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2
| | 1 | 4 | 4 | 8 | 7 | 12 | 10 | 16 | 13
| | | 1 | 6 | 9 | 20 | 24 | 42 | 46 | 72
| | | | 1 | 8 | 16 | 40 | 60 | 112 | 148
| | | | | 1 | 10 | 25 | 70 | 125 | 252
| | | | | | 1 | 12 | 36 | 112 | 231
| | | | | | | 1 | 14 | 49 | 168
| | | | | | | | 1 | 16 | 64
| | | | | | | | | 1 | 18
| | | | | | | | | | 1
|
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