A212001 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 4 | | 3 |
| | | | | | | | | | 9 | | 8 | | 5 |
| | | | | | | | | 20 | | 19 | | 16 | | 11 |
| | | | | | | | 35 | | 34 | | 31 | | 26 | | 15 |
| | | | | | | 66 | | 65 | | 62 | | 57 | | 46 | | 31 |
| | | | | | 105 | | 104 | | 101 | | 96 | | 85 | | 70 | | 39 |
| | | | | 176 | | 175 | | 172 | | 167 | | 156 | | 141 | | 110 | | 71 |
| | | | 270 | | 269 | | 266 | | 261 | | 250 | | 235 | | 204 | | 165 | | 94 |
| | | 420 | | 419 | | 416 | | 411 | | 400 | | 385 | | 354 | | 315 | | 244 | | 150 |
| | 616 | | 615 |
|
A212001 as a square array
1 | 4 | 9 | 20 | 35 | 66 | 105 | 176 | 270 | 420 | 616
| 3 | 8 | 19 | 34 | 65 | 104 | 175 | 269 | 419 | 615
| 5 | 16 | 31 | 62 | 101 | 172 | 266 | 416
| 11 | 26 | 57 | 96 | 167 | 261 | 411
| 15 | 46 | 85 | 156 | 250 | 400
| 31 | 70 | 141 | 235 | 385
| 39 | 110 | 204 | 354
| 71 | 165 | 315
| 94 | 244
| 150
|
A212001 as an upper right triangle
1 | 4 | 9 | 20 | 35 | 66 | 105 | 176 | 270 | 420 | 616
| | 3 | 8 | 19 | 34 | 65 | 104 | 175 | 269 | 419 | 615
| | | 5 | 16 | 31 | 62 | 101 | 172 | 266 | 416
| | | | 11 | 26 | 57 | 96 | 167 | 261 | 411
| | | | | 15 | 46 | 85 | 156 | 250 | 400
| | | | | | 31 | 70 | 141 | 235 | 385
| | | | | | | 39 | 110 | 204 | 354
| | | | | | | | 71 | 165 | 315
| | | | | | | | | 94 | 244
| | | | | | | | | | 150
| | | | | | | | | |
|
|