A081926 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 2 | | 11 |
| | | | | | | | | | 3 | | 12 | | 21 |
| | | | | | | | | 4 | | 13 | | 22 | | 31 |
| | | | | | | | 5 | | 14 | | 23 | | 32 | | 41 |
| | | | | | | 6 | | 15 | | 24 | | 33 | | 42 | | 51 |
| | | | | | 7 | | 16 | | 25 | | 34 | | 43 | | 52 | | 61 |
| | | | | 8 | | 17 | | 26 | | 35 | | 44 | | 53 | | 62 | | 71 |
| | | | 9 | | 18 | | 27 | | 36 | | 45 | | 54 | | 63 | | 72 | | 81 |
| | | 19 | | 28 | | 37 | | 46 | | 55 | | 64 | | 73 | | 82 | | 91 | | 109 |
| | 29 | | 38 | | 47 | | 56 | | 65 | | 74 | | 83 | | 92 | | 119 | | 128 | | 137 |
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A081926 as a square array
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 19 | 29
| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 28 | 38
| 21 | 22 | 23 | 24 | 25 | 26 | 27 | 37 | 47
| 31 | 32 | 33 | 34 | 35 | 36 | 46 | 56
| 41 | 42 | 43 | 44 | 45 | 55 | 65
| 51 | 52 | 53 | 54 | 64 | 74
| 61 | 62 | 63 | 73 | 83
| 71 | 72 | 82 | 92
| 81 | 91 | 119
| 109 | 128
| 137
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A081926 as an upper right triangle
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 19 | 29
| | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 28 | 38
| | | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 37 | 47
| | | | 31 | 32 | 33 | 34 | 35 | 36 | 46 | 56
| | | | | 41 | 42 | 43 | 44 | 45 | 55 | 65
| | | | | | 51 | 52 | 53 | 54 | 64 | 74
| | | | | | | 61 | 62 | 63 | 73 | 83
| | | | | | | | 71 | 72 | 82 | 92
| | | | | | | | | 81 | 91 | 119
| | | | | | | | | | 109 | 128
| | | | | | | | | | | 137
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