A257258 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 3 |
| | | | | | | | | | | 1 | | 3 | | 7 |
| | | | | | | | | | 1 | | 3 | | 8 | | 12 |
| | | | | | | | | 1 | | 3 | | 7 | | 14 | | 22 |
| | | | | | | | 1 | | 3 | | 8 | | 13 | | 24 | | 30 |
| | | | | | | 1 | | 3 | | 7 | | 14 | | 24 | | 30 | | 42 |
| | | | | | 1 | | 3 | | 8 | | 12 | | 26 | | 32 | | 43 | | 61 |
| | | | | 1 | | 3 | | 7 | | 13 | | 24 | | 33 | | 47 | | 63 | | 71 |
| | | | 1 | | 3 | | 8 | | 14 | | 24 | | 31 | | 43 | | 66 | | 72 | | 88 |
| | | 1 | | 3 | | 7 | | 13 | | 22 | | 30 | | 47 | | 60 | | 73 | | 83 | | 108 |
| | 1 | | 3 | | 8 | | 12 | | 24 | | 32 | | 43 | | 66 | | 71 | | 90 | | 117 | | 126 |
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A257258 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| 7 | 8 | 7 | 8 | 7 | 8 | 7 | 8 | 7 | 8
| 12 | 14 | 13 | 14 | 12 | 13 | 14 | 13 | 12
| 22 | 24 | 24 | 26 | 24 | 24 | 22 | 24
| 30 | 30 | 32 | 33 | 31 | 30 | 32
| 42 | 43 | 47 | 43 | 47 | 43
| 61 | 63 | 66 | 60 | 66
| 71 | 72 | 73 | 71
| 88 | 83 | 90
| 108 | 117
| 126
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A257258 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| | | 7 | 8 | 7 | 8 | 7 | 8 | 7 | 8 | 7 | 8
| | | | 12 | 14 | 13 | 14 | 12 | 13 | 14 | 13 | 12
| | | | | 22 | 24 | 24 | 26 | 24 | 24 | 22 | 24
| | | | | | 30 | 30 | 32 | 33 | 31 | 30 | 32
| | | | | | | 42 | 43 | 47 | 43 | 47 | 43
| | | | | | | | 61 | 63 | 66 | 60 | 66
| | | | | | | | | 71 | 72 | 73 | 71
| | | | | | | | | | 88 | 83 | 90
| | | | | | | | | | | 108 | 117
| | | | | | | | | | | | 126
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