A158841 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 3 | | 1 |
| | | | | | | | | 7 | | 4 | | 2 |
| | | | | | | | 13 | | 9 | | 6 | | 3 |
| | | | | | | 21 | | 16 | | 12 | | 8 | | 4 |
| | | | | | 31 | | 25 | | 20 | | 15 | | 10 | | 5 |
| | | | | 43 | | 36 | | 30 | | 24 | | 18 | | 12 | | 6 |
| | | | 57 | | 49 | | 42 | | 35 | | 28 | | 21 | | 14 | | 7 |
| | | 73 | | 64 | | 56 | | 48 | | 40 | | 32 | | 24 | | 16 | | 8 |
| | 91 | | 81 | | 72 | | 63 | | 54 | | 45 | | 36 | | 27 | | 18 | | 9 |
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A158841 as a square array
1 | 3 | 7 | 13 | 21 | 31 | 43 | 57 | 73 | 91
| 1 | 4 | 9 | 16 | 25 | 36 | 49 | 64 | 81
| 2 | 6 | 12 | 20 | 30 | 42 | 56 | 72
| 3 | 8 | 15 | 24 | 35 | 48 | 63
| 4 | 10 | 18 | 28 | 40 | 54
| 5 | 12 | 21 | 32 | 45
| 6 | 14 | 24 | 36
| 7 | 16 | 27
| 8 | 18
| 9
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A158841 as an upper right triangle
1 | 3 | 7 | 13 | 21 | 31 | 43 | 57 | 73 | 91
| | 1 | 4 | 9 | 16 | 25 | 36 | 49 | 64 | 81
| | | 2 | 6 | 12 | 20 | 30 | 42 | 56 | 72
| | | | 3 | 8 | 15 | 24 | 35 | 48 | 63
| | | | | 4 | 10 | 18 | 28 | 40 | 54
| | | | | | 5 | 12 | 21 | 32 | 45
| | | | | | | 6 | 14 | 24 | 36
| | | | | | | | 7 | 16 | 27
| | | | | | | | | 8 | 18
| | | | | | | | | | 9
|
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