A004747 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 2 | | 1 |
| | | | | | | | 10 | | 6 | | 1 |
| | | | | | | 80 | | 52 | | 12 | | 1 |
| | | | | | 880 | | 600 | | 160 | | 20 | | 1 |
| | | | | 12320 | | 8680 | | 2520 | | 380 | | 30 | | 1 |
| | | | 209440 | | 151200 | | 46480 | | 7840 | | 770 | | 42 | | 1 |
| | | 4188800 | | 3082240 | | 987840 | | 179760 | | 20160 | | 1400 | | 56 | | 1 |
| | 96342400 | | 71998080 | | 23826880 | | 4583040 | | 562800 | | 45360 | | 2352 | | 72 | | 1 |
|
A004747 as a square array
| 1 | 2 | 10 | 80 | 880 | 12320 | 209440 | 4188800 | 96342400
| | 1 | 6 | 52 | 600 | 8680 | 151200 | 3082240 | 71998080
| | 1 | 12 | 160 | 2520 | 46480 | 987840 | 23826880
| | 1 | 20 | 380 | 7840 | 179760 | 4583040
| | 1 | 30 | 770 | 20160 | 562800
| | 1 | 42 | 1400 | 45360
| | 1 | 56 | 2352
| | 1 | 72
| | 1
|
A004747 as an upper right triangle
| 1 | 2 | 10 | 80 | 880 | 12320 | 209440 | 4188800 | 96342400
| | 1 | 6 | 52 | 600 | 8680 | 151200 | 3082240 | 71998080
| | | 1 | 12 | 160 | 2520 | 46480 | 987840 | 23826880
| | | | 1 | 20 | 380 | 7840 | 179760 | 4583040
| | | | | 1 | 30 | 770 | 20160 | 562800
| | | | | | 1 | 42 | 1400 | 45360
| | | | | | | 1 | 56 | 2352
| | | | | | | | 1 | 72
| | | | | | | | | 1
|
|
