A221929 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 3 | | 1 |
| | | | | | | | 6 | | 25 | | 1 |
| | | | | | | 13 | | 232 | | 184 | | 1 |
| | | | | | 28 | | 2197 | | 5748 | | 1367 | | 1 |
| | | | | 60 | | 20933 | | 201378 | | 153652 | | 10179 | | 1 |
| | | | 129 | | 198589 | | 6888458 | | 20246283 | | 4053833 | | 75782 | | 1 |
| | | 277 | | 1885324 | | 236114556 | | 2568601026 | | 2007184132 | | 107220027 | | 564169 | | 1 |
| | 595 | | 17896442 |
|
A221929 as a square array
| 1 | 3 | 6 | 13 | 28 | 60 | 129 | 277 | 595
| | 1 | 25 | 232 | 2197 | 20933 | 198589 | 1885324 | 17896442
| | 1 | 184 | 5748 | 201378 | 6888458 | 236114556
| | 1 | 1367 | 153652 | 20246283 | 2568601026
| | 1 | 10179 | 4053833 | 2007184132
| | 1 | 75782 | 107220027
| | 1 | 564169
| | 1
|
A221929 as an upper right triangle
| 1 | 3 | 6 | 13 | 28 | 60 | 129 | 277 | 595
| | 1 | 25 | 232 | 2197 | 20933 | 198589 | 1885324 | 17896442
| | | 1 | 184 | 5748 | 201378 | 6888458 | 236114556
| | | | 1 | 1367 | 153652 | 20246283 | 2568601026
| | | | | 1 | 10179 | 4053833 | 2007184132
| | | | | | 1 | 75782 | 107220027
| | | | | | | 1 | 564169
| | | | | | | | 1
| | | | | | | |
|
|
