A221499 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 2 | | 1 |
| | | | | | | | | 4 | | 7 | | 1 |
| | | | | | | | 7 | | 33 | | 21 | | 1 |
| | | | | | | 12 | | 119 | | 228 | | 65 | | 1 |
| | | | | | 21 | | 457 | | 1733 | | 1561 | | 200 | | 1 |
| | | | | 37 | | 1710 | | 14297 | | 24485 | | 10648 | | 616 | | 1 |
| | | | 65 | | 6466 | | 111042 | | 420022 | | 345755 | | 72625 | | 1897 | | 1 |
| | | 114 | | 24433 | | 874106 | | 6665056 | | 12253352 | | 4882030 | | 495329 | | 5842 | | 1 |
| | 200 | | 92196 | | 6765307 |
|
A221499 as a square array
1 | 2 | 4 | 7 | 12 | 21 | 37 | 65 | 114 | 200
| 1 | 7 | 33 | 119 | 457 | 1710 | 6466 | 24433 | 92196
| 1 | 21 | 228 | 1733 | 14297 | 111042 | 874106 | 6765307
| 1 | 65 | 1561 | 24485 | 420022 | 6665056
| 1 | 200 | 10648 | 345755 | 12253352
| 1 | 616 | 72625 | 4882030
| 1 | 1897 | 495329
| 1 | 5842
| 1
|
A221499 as an upper right triangle
1 | 2 | 4 | 7 | 12 | 21 | 37 | 65 | 114 | 200
| | 1 | 7 | 33 | 119 | 457 | 1710 | 6466 | 24433 | 92196
| | | 1 | 21 | 228 | 1733 | 14297 | 111042 | 874106 | 6765307
| | | | 1 | 65 | 1561 | 24485 | 420022 | 6665056
| | | | | 1 | 200 | 10648 | 345755 | 12253352
| | | | | | 1 | 616 | 72625 | 4882030
| | | | | | | 1 | 1897 | 495329
| | | | | | | | 1 | 5842
| | | | | | | | | 1
| | | | | | | | |
|
|