A164645 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 3 | | 2 |
| | | | | | | | 1 | | 6 | | 14 | | 3 |
| | | | | | | 1 | | 10 | | 50 | | 55 | | 4 |
| | | | | | 1 | | 15 | | 130 | | 375 | | 194 | | 5 |
| | | | | 1 | | 21 | | 280 | | 1575 | | 2598 | | 562 | | 3 |
| | | | 1 | | 28 | | 532 | | 4970 | | 18096 | | 15532 | | 1161 | | 0 |
| | | 1 | | 36 | | 924 | | 12978 | | 85128 | | 188386 | | 74183 | | 1244 | | 0 |
| | 1 | | 45 | | 1500 | | 29610 | | 308988 | | 1364710 | | 1679189 | | 244430 | | 327 |
|
A164645 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45
| | 2 | 14 | 50 | 130 | 280 | 532 | 924 | 1500
| | 3 | 55 | 375 | 1575 | 4970 | 12978 | 29610
| | 4 | 194 | 2598 | 18096 | 85128 | 308988
| | 5 | 562 | 15532 | 188386 | 1364710
| | 3 | 1161 | 74183 | 1679189
| | 0 | 1244 | 244430
| | 0 | 327
|
A164645 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45
| | | 2 | 14 | 50 | 130 | 280 | 532 | 924 | 1500
| | | | 3 | 55 | 375 | 1575 | 4970 | 12978 | 29610
| | | | | 4 | 194 | 2598 | 18096 | 85128 | 308988
| | | | | | 5 | 562 | 15532 | 188386 | 1364710
| | | | | | | 3 | 1161 | 74183 | 1679189
| | | | | | | | 0 | 1244 | 244430
| | | | | | | | | 0 | 327
| | | | | | | | |
|
|
