A181842 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 2 |
| | | | | | | | | 1 | | 2 | | 3 |
| | | | | | | | 1 | | 2 | | 5 | | 4 |
| | | | | | | 1 | | 2 | | 5 | | 10 | | 5 |
| | | | | | 1 | | 2 | | 5 | | 12 | | 12 | | 6 |
| | | | | 1 | | 2 | | 5 | | 12 | | 18 | | 28 | | 7 |
| | | | 1 | | 2 | | 5 | | 12 | | 20 | | 38 | | 32 | | 8 |
| | | 1 | | 2 | | 5 | | 12 | | 20 | | 44 | | 57 | | 48 | | 9 |
| | 1 | | 2 | | 5 | | 12 | | 20 | | 46 | | 67 | | 100 | | 55 | | 10 |
|
A181842 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2
| 3 | 5 | 5 | 5 | 5 | 5 | 5 | 5
| 4 | 10 | 12 | 12 | 12 | 12 | 12
| 5 | 12 | 18 | 20 | 20 | 20
| 6 | 28 | 38 | 44 | 46
| 7 | 32 | 57 | 67
| 8 | 48 | 100
| 9 | 55
| 10
|
A181842 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2
| | | 3 | 5 | 5 | 5 | 5 | 5 | 5 | 5
| | | | 4 | 10 | 12 | 12 | 12 | 12 | 12
| | | | | 5 | 12 | 18 | 20 | 20 | 20
| | | | | | 6 | 28 | 38 | 44 | 46
| | | | | | | 7 | 32 | 57 | 67
| | | | | | | | 8 | 48 | 100
| | | | | | | | | 9 | 55
| | | | | | | | | | 10
|
|