A250014 as a triangular array
| | | | | | | | | 20 |
| | | | | | | | | 300 | | 20 |
| | | | | | | | 2040 | | 520 | | 20 |
| | | | | | | 8840 | | 5200 | | 912 | | 20 |
| | | | | | 28860 | | 30360 | | 13512 | | 1612 | | 20 |
| | | | | 77700 | | 125780 | | 106352 | | 35440 | | 2864 | | 20 |
| | | | 182000 | | 412160 | | 558588 | | 375756 | | 93384 | | 5102 | | 20 |
| | | 383760 | | 1140160 | | 2224848 | | 2499284 | | 1332504 | | 246560 | | 9090 | | 20 |
| | 745380 | | 2776080 |
|
A250014 as a square array
20 | 300 | 2040 | 8840 | 28860 | 77700 | 182000 | 383760 | 745380
| 20 | 520 | 5200 | 30360 | 125780 | 412160 | 1140160 | 2776080
| 20 | 912 | 13512 | 106352 | 558588 | 2224848
| 20 | 1612 | 35440 | 375756 | 2499284
| 20 | 2864 | 93384 | 1332504
| 20 | 5102 | 246560
| 20 | 9090
| 20
|
A250014 as an upper right triangle
20 | 300 | 2040 | 8840 | 28860 | 77700 | 182000 | 383760 | 745380
| | 20 | 520 | 5200 | 30360 | 125780 | 412160 | 1140160 | 2776080
| | | 20 | 912 | 13512 | 106352 | 558588 | 2224848
| | | | 20 | 1612 | 35440 | 375756 | 2499284
| | | | | 20 | 2864 | 93384 | 1332504
| | | | | | 20 | 5102 | 246560
| | | | | | | 20 | 9090
| | | | | | | | 20
| | | | | | | |
|
|