A173504 as a triangular array
| | | | | | | | 1 |
| | | | | | | | 1 | | 1 |
| | | | | | | 1 | | 2 | | 1 |
| | | | | | 1 | | 16 | | 16 | | 1 |
| | | | | 1 | | 416 | | 3328 | | 416 | | 1 |
| | | | 1 | | 33280 | | 6922240 | | 6922240 | | 33280 | | 1 |
| | | 1 | | 8053760 | | 134014566400 | | 3484378726400 | | 134014566400 | | 8053760 | | 1 |
| | 1 | | 5863137280 | | 23610150250086400 | | 49109112520179712000 | | 49109112520179712000 | | 23610150250086400 | | 5863137280 | | 1 |
|
A173504 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 16 | 416 | 33280 | 8053760 | 5863137280
| | 1 | 16 | 3328 | 6922240 | 134014566400 | 23610150250086400
| | 1 | 416 | 6922240 | 3484378726400 | 49109112520179712000
| | 1 | 33280 | 134014566400 | 49109112520179712000
| | 1 | 8053760 | 23610150250086400
| | 1 | 5863137280
| | 1
|
A173504 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 16 | 416 | 33280 | 8053760 | 5863137280
| | | 1 | 16 | 3328 | 6922240 | 134014566400 | 23610150250086400
| | | | 1 | 416 | 6922240 | 3484378726400 | 49109112520179712000
| | | | | 1 | 33280 | 134014566400 | 49109112520179712000
| | | | | | 1 | 8053760 | 23610150250086400
| | | | | | | 1 | 5863137280
| | | | | | | | 1
|
|
