A155724 formatted as a triangular array:
| | | | | | | | | 0 | | | | | | | | | |
| | | | | | | | 3 | | 8 | | | | | | | | |
| | | | | | | 6 | | 13 | | 20 | | | | | | | |
| | | | | | 9 | | 18 | | 27 | | 36 | | | | | | |
| | | | | 12 | | 23 | | 34 | | 45 | | 56 | | | | | |
| | | | 15 | | 28 | | 41 | | 54 | | 67 | | 80 | | | | |
| | | 18 | | 33 | | 48 | | 63 | | 78 | | 93 | | 108 | | | |
| | 21 | | 38 | | 55 | | 72 | | 89 | | 106 | | 123 | | 140 | | |
| 24 | | 43 | | 62 | | 81 | | 100 | | 119 | | 138 | | 157 | | 176 | |
| 27 | | 48 | | 69 | | 90 | | 111 | | 132 | | 153 | | 174 | | 195 | | 216 |
A155724 formatted as a square array:
| 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 | 27 |
| 8 | 13 | 18 | 23 | 28 | 33 | 38 | 43 | 48 | |
| 20 | 27 | 34 | 41 | 48 | 55 | 62 | 69 | | |
| 36 | 45 | 54 | 63 | 72 | 81 | 90 | | | |
| 56 | 67 | 78 | 89 | 100 | 111 | | | | |
| 80 | 93 | 106 | 119 | 132 | | | | | |
| 108 | 123 | 138 | 153 | | | | | | |
| 140 | 157 | 174 | | | | | | | |
| 176 | 195 | | | | | | | | |
| 216 | | | | | | | | | |
A155724 formatted as an upper right triangle:
| 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 | 27 |
| 8 | 13 | 18 | 23 | 28 | 33 | 38 | 43 | 48 |
| | 20 | 27 | 34 | 41 | 48 | 55 | 62 | 69 |
| | | 36 | 45 | 54 | 63 | 72 | 81 | 90 |
| | | | 56 | 67 | 78 | 89 | 100 | 111 |
| | | | | 80 | 93 | 106 | 119 | 132 |
| | | | | | 108 | 123 | 138 | 153 |
| | | | | | | 140 | 157 | 174 |
| | | | | | | | 176 | 195 |
| | | | | | | | | 216 |
|