A166021 as a triangular array
| | | | | | | | | | | 2 |
| | | | | | | | | | | 4 | | 5 |
| | | | | | | | | | 8 | | 9 | | 10 |
| | | | | | | | | 14 | | 15 | | 16 | | 17 |
| | | | | | | | 22 | | 23 | | 24 | | 25 | | 26 |
| | | | | | | 32 | | 33 | | 34 | | 35 | | 36 | | 37 |
| | | | | | 44 | | 45 | | 46 | | 47 | | 48 | | 49 | | 50 |
| | | | | 58 | | 59 | | 60 | | 61 | | 62 | | 63 | | 64 | | 65 |
| | | | 74 | | 75 | | 76 | | 77 | | 78 | | 79 | | 80 | | 81 | | 82 |
| | | 92 | | 93 | | 94 | | 95 | | 96 | | 97 | | 98 | | 99 | | 100 | | 101 |
| | 112 | | 113 | | 114 | | 115 | | 116 | | 117 | | 118 | | 119 | | 120 | | 121 |
|
A166021 as a square array
2 | 4 | 8 | 14 | 22 | 32 | 44 | 58 | 74 | 92 | 112
| 5 | 9 | 15 | 23 | 33 | 45 | 59 | 75 | 93 | 113
| 10 | 16 | 24 | 34 | 46 | 60 | 76 | 94 | 114
| 17 | 25 | 35 | 47 | 61 | 77 | 95 | 115
| 26 | 36 | 48 | 62 | 78 | 96 | 116
| 37 | 49 | 63 | 79 | 97 | 117
| 50 | 64 | 80 | 98 | 118
| 65 | 81 | 99 | 119
| 82 | 100 | 120
| 101 | 121
|
A166021 as an upper right triangle
2 | 4 | 8 | 14 | 22 | 32 | 44 | 58 | 74 | 92 | 112
| | 5 | 9 | 15 | 23 | 33 | 45 | 59 | 75 | 93 | 113
| | | 10 | 16 | 24 | 34 | 46 | 60 | 76 | 94 | 114
| | | | 17 | 25 | 35 | 47 | 61 | 77 | 95 | 115
| | | | | 26 | 36 | 48 | 62 | 78 | 96 | 116
| | | | | | 37 | 49 | 63 | 79 | 97 | 117
| | | | | | | 50 | 64 | 80 | 98 | 118
| | | | | | | | 65 | 81 | 99 | 119
| | | | | | | | | 82 | 100 | 120
| | | | | | | | | | 101 | 121
| | | | | | | | | |
|
|