A195074 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 3 | | 2 |
| | | | | | | | | | | 6 | | 4 | | 5 |
| | | | | | | | | | 10 | | 7 | | 9 | | 8 |
| | | | | | | | | 15 | | 11 | | 14 | | 12 | | 13 |
| | | | | | | | 21 | | 16 | | 20 | | 17 | | 19 | | 18 |
| | | | | | | 28 | | 22 | | 27 | | 23 | | 26 | | 25 | | 24 |
| | | | | | 36 | | 29 | | 35 | | 30 | | 34 | | 33 | | 31 | | 32 |
| | | | | 45 | | 37 | | 44 | | 38 | | 43 | | 42 | | 39 | | 41 | | 40 |
| | | | 55 | | 46 | | 54 | | 47 | | 53 | | 52 | | 48 | | 51 | | 49 | | 50 |
| | | 66 | | 56 | | 65 | | 57 | | 64 | | 63 | | 58 | | 62 | | 59 | | 61 | | 60 |
| | 78 | | 67 | | 77 |
|
A195074 as a square array
1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 | 55 | 66 | 78
| 2 | 4 | 7 | 11 | 16 | 22 | 29 | 37 | 46 | 56 | 67
| 5 | 9 | 14 | 20 | 27 | 35 | 44 | 54 | 65 | 77
| 8 | 12 | 17 | 23 | 30 | 38 | 47 | 57
| 13 | 19 | 26 | 34 | 43 | 53 | 64
| 18 | 25 | 33 | 42 | 52 | 63
| 24 | 31 | 39 | 48 | 58
| 32 | 41 | 51 | 62
| 40 | 49 | 59
| 50 | 61
| 60
|
A195074 as an upper right triangle
1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 | 55 | 66 | 78
| | 2 | 4 | 7 | 11 | 16 | 22 | 29 | 37 | 46 | 56 | 67
| | | 5 | 9 | 14 | 20 | 27 | 35 | 44 | 54 | 65 | 77
| | | | 8 | 12 | 17 | 23 | 30 | 38 | 47 | 57
| | | | | 13 | 19 | 26 | 34 | 43 | 53 | 64
| | | | | | 18 | 25 | 33 | 42 | 52 | 63
| | | | | | | 24 | 31 | 39 | 48 | 58
| | | | | | | | 32 | 41 | 51 | 62
| | | | | | | | | 40 | 49 | 59
| | | | | | | | | | 50 | 61
| | | | | | | | | | | 60
| | | | | | | | | | |
|
|