A074883 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 3 | | 3 |
| | | | | | | | | 4 | | 6 | | 4 |
| | | | | | | | 7 | | 10 | | 10 | | 7 |
| | | | | | | 6 | | 17 | | 20 | | 17 | | 6 |
| | | | | | 12 | | 23 | | 37 | | 37 | | 23 | | 12 |
| | | | | 8 | | 35 | | 60 | | 74 | | 60 | | 35 | | 8 |
| | | | 15 | | 43 | | 95 | | 134 | | 134 | | 95 | | 43 | | 15 |
| | | 13 | | 58 | | 138 | | 229 | | 268 | | 229 | | 138 | | 58 | | 13 |
| | 18 | | 71 | | 196 | | 367 | | 497 | | 497 | | 367 | | 196 | | 71 | | 18 |
|
A074883 as a square array
1 | 3 | 4 | 7 | 6 | 12 | 8 | 15 | 13 | 18
| 3 | 6 | 10 | 17 | 23 | 35 | 43 | 58 | 71
| 4 | 10 | 20 | 37 | 60 | 95 | 138 | 196
| 7 | 17 | 37 | 74 | 134 | 229 | 367
| 6 | 23 | 60 | 134 | 268 | 497
| 12 | 35 | 95 | 229 | 497
| 8 | 43 | 138 | 367
| 15 | 58 | 196
| 13 | 71
| 18
|
A074883 as an upper right triangle
1 | 3 | 4 | 7 | 6 | 12 | 8 | 15 | 13 | 18
| | 3 | 6 | 10 | 17 | 23 | 35 | 43 | 58 | 71
| | | 4 | 10 | 20 | 37 | 60 | 95 | 138 | 196
| | | | 7 | 17 | 37 | 74 | 134 | 229 | 367
| | | | | 6 | 23 | 60 | 134 | 268 | 497
| | | | | | 12 | 35 | 95 | 229 | 497
| | | | | | | 8 | 43 | 138 | 367
| | | | | | | | 15 | 58 | 196
| | | | | | | | | 13 | 71
| | | | | | | | | | 18
|
|