A257254 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 3 | | 1 |
| | | | | | | | | | | 10 | | 3 | | 1 |
| | | | | | | | | | 21 | | 5 | | 3 | | 1 |
| | | | | | | | | 55 | | 14 | | 10 | | 3 | | 1 |
| | | | | | | | 78 | | 11 | | 7 | | 5 | | 3 | | 1 |
| | | | | | | 136 | | 26 | | 22 | | 14 | | 10 | | 3 | | 1 |
| | | | | | 171 | | 17 | | 13 | | 11 | | 7 | | 5 | | 3 | | 1 |
| | | | | 253 | | 38 | | 34 | | 26 | | 22 | | 14 | | 10 | | 3 | | 1 |
| | | | 406 | | 69 | | 57 | | 51 | | 39 | | 33 | | 21 | | 5 | | 3 | | 1 |
| | | 465 | | 29 | | 23 | | 19 | | 17 | | 13 | | 11 | | 7 | | 10 | | 3 | | 1 |
| | 666 | | 93 | | 87 | | 69 | | 57 | | 51 | | 39 | | 33 | | 21 | | 5 | | 3 | | 1 |
|
A257254 as a square array
| 1 | 3 | 10 | 21 | 55 | 78 | 136 | 171 | 253 | 406 | 465 | 666
| | 1 | 3 | 5 | 14 | 11 | 26 | 17 | 38 | 69 | 29 | 93
| | 1 | 3 | 10 | 7 | 22 | 13 | 34 | 57 | 23 | 87
| | 1 | 3 | 5 | 14 | 11 | 26 | 51 | 19 | 69
| | 1 | 3 | 10 | 7 | 22 | 39 | 17 | 57
| | 1 | 3 | 5 | 14 | 33 | 13 | 51
| | 1 | 3 | 10 | 21 | 11 | 39
| | 1 | 3 | 5 | 7 | 33
| | 1 | 3 | 10 | 21
| | 1 | 3 | 5
| | 1 | 3
| | 1
|
A257254 as an upper right triangle
| 1 | 3 | 10 | 21 | 55 | 78 | 136 | 171 | 253 | 406 | 465 | 666
| | 1 | 3 | 5 | 14 | 11 | 26 | 17 | 38 | 69 | 29 | 93
| | | 1 | 3 | 10 | 7 | 22 | 13 | 34 | 57 | 23 | 87
| | | | 1 | 3 | 5 | 14 | 11 | 26 | 51 | 19 | 69
| | | | | 1 | 3 | 10 | 7 | 22 | 39 | 17 | 57
| | | | | | 1 | 3 | 5 | 14 | 33 | 13 | 51
| | | | | | | 1 | 3 | 10 | 21 | 11 | 39
| | | | | | | | 1 | 3 | 5 | 7 | 33
| | | | | | | | | 1 | 3 | 10 | 21
| | | | | | | | | | 1 | 3 | 5
| | | | | | | | | | | 1 | 3
| | | | | | | | | | | | 1
|
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