A049615 as a triangular array
| | | | | | | | | | | | 0 |
| | | | | | | | | | | | 0 | | 0 |
| | | | | | | | | | | 1 | | 0 | | 1 |
| | | | | | | | | | 2 | | 1 | | 1 | | 2 |
| | | | | | | | | 3 | | 2 | | 3 | | 2 | | 3 |
| | | | | | | | 4 | | 3 | | 4 | | 4 | | 3 | | 4 |
| | | | | | | 5 | | 4 | | 6 | | 6 | | 6 | | 4 | | 5 |
| | | | | | 6 | | 5 | | 7 | | 8 | | 8 | | 7 | | 5 | | 6 |
| | | | | 7 | | 6 | | 9 | | 9 | | 11 | | 9 | | 9 | | 6 | | 7 |
| | | | 8 | | 7 | | 10 | | 12 | | 12 | | 12 | | 12 | | 10 | | 7 | | 8 |
| | | 9 | | 8 | | 12 | | 13 | | 16 | | 14 | | 16 | | 13 | | 12 | | 8 | | 9 |
| | 10 | | 9 | | 13 | | 15 | | 17 | | 18 | | 18 | | 17 | | 15 | | 13 | | 9 | | 10 |
|
A049615 as a square array
0 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
| 0 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| 1 | 1 | 3 | 4 | 6 | 7 | 9 | 10 | 12 | 13
| 2 | 2 | 4 | 6 | 8 | 9 | 12 | 13 | 15
| 3 | 3 | 6 | 8 | 11 | 12 | 16 | 17
| 4 | 4 | 7 | 9 | 12 | 14 | 18
| 5 | 5 | 9 | 12 | 16 | 18
| 6 | 6 | 10 | 13 | 17
| 7 | 7 | 12 | 15
| 8 | 8 | 13
| 9 | 9
| 10
|
A049615 as an upper right triangle
0 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
| | 0 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| | | 1 | 1 | 3 | 4 | 6 | 7 | 9 | 10 | 12 | 13
| | | | 2 | 2 | 4 | 6 | 8 | 9 | 12 | 13 | 15
| | | | | 3 | 3 | 6 | 8 | 11 | 12 | 16 | 17
| | | | | | 4 | 4 | 7 | 9 | 12 | 14 | 18
| | | | | | | 5 | 5 | 9 | 12 | 16 | 18
| | | | | | | | 6 | 6 | 10 | 13 | 17
| | | | | | | | | 7 | 7 | 12 | 15
| | | | | | | | | | 8 | 8 | 13
| | | | | | | | | | | 9 | 9
| | | | | | | | | | | | 10
|
|