A231227 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 2 | | 2 |
| | | | | | | | | | 3 | | 4 | | 3 |
| | | | | | | | | 6 | | 8 | | 8 | | 6 |
| | | | | | | | 11 | | 17 | | 21 | | 17 | | 11 |
| | | | | | | 22 | | 45 | | 54 | | 54 | | 45 | | 22 |
| | | | | | 43 | | 103 | | 185 | | 182 | | 185 | | 103 | | 43 |
| | | | | 86 | | 264 | | 552 | | 812 | | 812 | | 552 | | 264 | | 86 |
| | | | 171 | | 676 | | 1799 | | 2962 | | 4298 | | 2962 | | 1799 | | 676 | | 171 |
| | | 342 | | 1724 | | 5900 | | 12179 | | 19935 | | 19935 | | 12179 | | 5900 | | 1724 | | 342 |
| | 683 | | 4501 |
|
A231227 as a square array
1 | 2 | 3 | 6 | 11 | 22 | 43 | 86 | 171 | 342 | 683
| 2 | 4 | 8 | 17 | 45 | 103 | 264 | 676 | 1724 | 4501
| 3 | 8 | 21 | 54 | 185 | 552 | 1799 | 5900
| 6 | 17 | 54 | 182 | 812 | 2962 | 12179
| 11 | 45 | 185 | 812 | 4298 | 19935
| 22 | 103 | 552 | 2962 | 19935
| 43 | 264 | 1799 | 12179
| 86 | 676 | 5900
| 171 | 1724
| 342
|
A231227 as an upper right triangle
1 | 2 | 3 | 6 | 11 | 22 | 43 | 86 | 171 | 342 | 683
| | 2 | 4 | 8 | 17 | 45 | 103 | 264 | 676 | 1724 | 4501
| | | 3 | 8 | 21 | 54 | 185 | 552 | 1799 | 5900
| | | | 6 | 17 | 54 | 182 | 812 | 2962 | 12179
| | | | | 11 | 45 | 185 | 812 | 4298 | 19935
| | | | | | 22 | 103 | 552 | 2962 | 19935
| | | | | | | 43 | 264 | 1799 | 12179
| | | | | | | | 86 | 676 | 5900
| | | | | | | | | 171 | 1724
| | | | | | | | | | 342
| | | | | | | | | |
|
|