A011801 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 4 | | 1 |
| | | | | | | | 36 | | 12 | | 1 |
| | | | | | | 504 | | 192 | | 24 | | 1 |
| | | | | | 9576 | | 3960 | | 600 | | 40 | | 1 |
| | | | | 229824 | | 100656 | | 17160 | | 1440 | | 60 | | 1 |
| | | | 6664896 | | 3048192 | | 563976 | | 54600 | | 2940 | | 84 | | 1 |
| | | 226606464 | | 107255232 | | 21095424 | | 2256576 | | 142800 | | 5376 | | 112 | | 1 |
| | 8837652096 | | 4302305280 | | 887785920 | | 102332160 | | 7254576 | | 325584 | | 9072 | | 144 | | 1 |
|
A011801 as a square array
| 1 | 4 | 36 | 504 | 9576 | 229824 | 6664896 | 226606464 | 8837652096
| | 1 | 12 | 192 | 3960 | 100656 | 3048192 | 107255232 | 4302305280
| | 1 | 24 | 600 | 17160 | 563976 | 21095424 | 887785920
| | 1 | 40 | 1440 | 54600 | 2256576 | 102332160
| | 1 | 60 | 2940 | 142800 | 7254576
| | 1 | 84 | 5376 | 325584
| | 1 | 112 | 9072
| | 1 | 144
| | 1
|
A011801 as an upper right triangle
| 1 | 4 | 36 | 504 | 9576 | 229824 | 6664896 | 226606464 | 8837652096
| | 1 | 12 | 192 | 3960 | 100656 | 3048192 | 107255232 | 4302305280
| | | 1 | 24 | 600 | 17160 | 563976 | 21095424 | 887785920
| | | | 1 | 40 | 1440 | 54600 | 2256576 | 102332160
| | | | | 1 | 60 | 2940 | 142800 | 7254576
| | | | | | 1 | 84 | 5376 | 325584
| | | | | | | 1 | 112 | 9072
| | | | | | | | 1 | 144
| | | | | | | | | 1
|
|
