A107981 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 6 | | 10 |
| | | | | | | | | 20 | | 40 | | 50 |
| | | | | | | | 50 | | 110 | | 155 | | 175 |
| | | | | | | 105 | | 245 | | 371 | | 455 | | 490 |
| | | | | | 196 | | 476 | | 756 | | 980 | | 1120 | | 1176 |
| | | | | 336 | | 840 | | 1380 | | 1860 | | 2220 | | 2436 | | 2520 |
| | | | 540 | | 1380 | | 2325 | | 3225 | | 3975 | | 4515 | | 4830 | | 4950 |
| | | 825 | | 2145 | | 3685 | | 5225 | | 6600 | | 7700 | | 8470 | | 8910 | | 9075 |
| | 1210 | | 3190 |
|
A107981 as a square array
1 | 6 | 20 | 50 | 105 | 196 | 336 | 540 | 825 | 1210
| 10 | 40 | 110 | 245 | 476 | 840 | 1380 | 2145 | 3190
| 50 | 155 | 371 | 756 | 1380 | 2325 | 3685
| 175 | 455 | 980 | 1860 | 3225 | 5225
| 490 | 1120 | 2220 | 3975 | 6600
| 1176 | 2436 | 4515 | 7700
| 2520 | 4830 | 8470
| 4950 | 8910
| 9075
|
A107981 as an upper right triangle
1 | 6 | 20 | 50 | 105 | 196 | 336 | 540 | 825 | 1210
| | 10 | 40 | 110 | 245 | 476 | 840 | 1380 | 2145 | 3190
| | | 50 | 155 | 371 | 756 | 1380 | 2325 | 3685
| | | | 175 | 455 | 980 | 1860 | 3225 | 5225
| | | | | 490 | 1120 | 2220 | 3975 | 6600
| | | | | | 1176 | 2436 | 4515 | 7700
| | | | | | | 2520 | 4830 | 8470
| | | | | | | | 4950 | 8910
| | | | | | | | | 9075
| | | | | | | | |
|
|