A251515 as a triangular array
| | | | | | | 234 |
| | | | | | | 2264 | | 2264 |
| | | | | | 21862 | | 45470 | | 21862 |
| | | | | 211680 | | 915152 | | 915152 | | 211680 |
| | | | 2047194 | | 18567350 | | 38529532 | | 18567350 | | 2047194 |
| | | 19818328 | | 376244106 | | 1644478410 | | 1644478410 | | 376244106 | | 19818328 |
| | 191708742 | | 7639226604 | | 70039777210 |
|
A251515 as a square array
234 | 2264 | 21862 | 211680 | 2047194 | 19818328 | 191708742
| 2264 | 45470 | 915152 | 18567350 | 376244106 | 7639226604
| 21862 | 915152 | 38529532 | 1644478410 | 70039777210
| 211680 | 18567350 | 1644478410
| 2047194 | 376244106
| 19818328
|
A251515 as an upper right triangle
234 | 2264 | 21862 | 211680 | 2047194 | 19818328 | 191708742
| | 2264 | 45470 | 915152 | 18567350 | 376244106 | 7639226604
| | | 21862 | 915152 | 38529532 | 1644478410 | 70039777210
| | | | 211680 | 18567350 | 1644478410
| | | | | 2047194 | 376244106
| | | | | | 19818328
| | | | | |
|
|