A280124 as a triangular array
| | | | | | | | | | 0 |
| | | | | | | | | | 0 | | 0 |
| | | | | | | | | 2 | | 4 | | 2 |
| | | | | | | | 2 | | 8 | | 8 | | 2 |
| | | | | | | 8 | | 28 | | 37 | | 28 | | 8 |
| | | | | | 14 | | 80 | | 168 | | 168 | | 80 | | 14 |
| | | | | 36 | | 252 | | 705 | | 1030 | | 705 | | 252 | | 36 |
| | | | 74 | | 776 | | 2852 | | 5802 | | 5802 | | 2852 | | 776 | | 74 |
| | | 168 | | 2356 | | 11249 | | 31608 | | 44382 | | 31608 | | 11249 | | 2356 | | 168 |
| | 358 | | 7200 | | 44120 | | 171100 | | 330254 | | 330254 | | 171100 | | 44120 |
|
A280124 as a square array
0 | 0 | 2 | 2 | 8 | 14 | 36 | 74 | 168 | 358
| 0 | 4 | 8 | 28 | 80 | 252 | 776 | 2356 | 7200
| 2 | 8 | 37 | 168 | 705 | 2852 | 11249 | 44120
| 2 | 28 | 168 | 1030 | 5802 | 31608 | 171100
| 8 | 80 | 705 | 5802 | 44382 | 330254
| 14 | 252 | 2852 | 31608 | 330254
| 36 | 776 | 11249 | 171100
| 74 | 2356 | 44120
| 168
|
A280124 as an upper right triangle
0 | 0 | 2 | 2 | 8 | 14 | 36 | 74 | 168 | 358
| | 0 | 4 | 8 | 28 | 80 | 252 | 776 | 2356 | 7200
| | | 2 | 8 | 37 | 168 | 705 | 2852 | 11249 | 44120
| | | | 2 | 28 | 168 | 1030 | 5802 | 31608 | 171100
| | | | | 8 | 80 | 705 | 5802 | 44382 | 330254
| | | | | | 14 | 252 | 2852 | 31608 | 330254
| | | | | | | 36 | 776 | 11249 | 171100
| | | | | | | | 74 | 2356 | 44120
| | | | | | | | | 168
| | | | | | | | |
|
|