A338838 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 2 | | 0 |
| | | | | | | | | 1 | | 3 | | 0 | | 0 |
| | | | | | | | 1 | | 4 | | 4 | | 0 | | 0 |
| | | | | | | 1 | | 5 | | 10 | | 10 | | 10 | | 10 |
| | | | | | 1 | | 6 | | 18 | | 36 | | 60 | | 84 | | 60 |
| | | | | 1 | | 7 | | 28 | | 84 | | 210 | | 434 | | 630 | | 462 |
| | | | 1 | | 8 | | 40 | | 160 | | 544 | | 1552 | | 3440 | | 5168 | | 3920 |
| | | 1 | | 9 | | 54 | | 270 | | 1170 | | 4338 | | 13158 | | 30366 | | 47178 | | 36954 |
| | 1 | | 10 | | 70 | | 420 | | 2220 | | 10220 | | 39780 | | 125220 | | 298060 | | 476220 | | 382740 |
|
A338838 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
| 0 | 0 | 4 | 10 | 18 | 28 | 40 | 54 | 70
| 0 | 0 | 10 | 36 | 84 | 160 | 270 | 420
| 0 | 10 | 60 | 210 | 544 | 1170 | 2220
| 10 | 84 | 434 | 1552 | 4338 | 10220
| 60 | 630 | 3440 | 13158 | 39780
| 462 | 5168 | 30366 | 125220
| 3920 | 47178 | 298060
| 36954 | 476220
| 382740
|
A338838 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
| | | 0 | 0 | 4 | 10 | 18 | 28 | 40 | 54 | 70
| | | | 0 | 0 | 10 | 36 | 84 | 160 | 270 | 420
| | | | | 0 | 10 | 60 | 210 | 544 | 1170 | 2220
| | | | | | 10 | 84 | 434 | 1552 | 4338 | 10220
| | | | | | | 60 | 630 | 3440 | 13158 | 39780
| | | | | | | | 462 | 5168 | 30366 | 125220
| | | | | | | | | 3920 | 47178 | 298060
| | | | | | | | | | 36954 | 476220
| | | | | | | | | | | 382740
|
|