A223450 as a triangular array
| | | | | | | 1 |
| | | | | | | 1 | | 10 |
| | | | | | 1 | | 26 | | 75 |
| | | | | 1 | | 42 | | 399 | | 500 |
| | | | 1 | | 58 | | 927 | | 5220 | | 3125 |
| | | 1 | | 74 | | 1815 | | 17380 | | 64285 | | 18750 |
| | 1 | | 106 | | 2751 | | 46884 |
|
A223450 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1
| 10 | 26 | 42 | 58 | 74 | 106
| 75 | 399 | 927 | 1815 | 2751
| 500 | 5220 | 17380 | 46884
| 3125 | 64285
| 18750
|
A223450 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1
| | 10 | 26 | 42 | 58 | 74 | 106
| | | 75 | 399 | 927 | 1815 | 2751
| | | | 500 | 5220 | 17380 | 46884
| | | | | 3125 | 64285
| | | | | | 18750
| | | | | |
|
|