A220217 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 2 | | 2 |
| | | | | | | | | 4 | | 6 | | 4 |
| | | | | | | | 7 | | 23 | | 23 | | 7 |
| | | | | | | 12 | | 75 | | 179 | | 75 | | 12 |
| | | | | | 21 | | 241 | | 1220 | | 1220 | | 241 | | 21 |
| | | | | 37 | | 777 | | 8293 | | 16465 | | 8293 | | 777 | | 37 |
| | | | 65 | | 2512 | | 56222 | | 218677 | | 218677 | | 56222 | | 2512 | | 65 |
| | | 114 | | 8132 | | 381710 | | 2902395 | | 5674816 | | 2902395 | | 381710 | | 8132 | | 114 |
| | 200 | | 26335 | | 2590727 |
|
A220217 as a square array
1 | 2 | 4 | 7 | 12 | 21 | 37 | 65 | 114 | 200
| 2 | 6 | 23 | 75 | 241 | 777 | 2512 | 8132 | 26335
| 4 | 23 | 179 | 1220 | 8293 | 56222 | 381710 | 2590727
| 7 | 75 | 1220 | 16465 | 218677 | 2902395
| 12 | 241 | 8293 | 218677 | 5674816
| 21 | 777 | 56222 | 2902395
| 37 | 2512 | 381710
| 65 | 8132
| 114
|
A220217 as an upper right triangle
1 | 2 | 4 | 7 | 12 | 21 | 37 | 65 | 114 | 200
| | 2 | 6 | 23 | 75 | 241 | 777 | 2512 | 8132 | 26335
| | | 4 | 23 | 179 | 1220 | 8293 | 56222 | 381710 | 2590727
| | | | 7 | 75 | 1220 | 16465 | 218677 | 2902395
| | | | | 12 | 241 | 8293 | 218677 | 5674816
| | | | | | 21 | 777 | 56222 | 2902395
| | | | | | | 37 | 2512 | 381710
| | | | | | | | 65 | 8132
| | | | | | | | | 114
| | | | | | | | |
|
|