A206521 as a triangular array
| | | | | | | 15 |
| | | | | | | 186 | | 186 |
| | | | | | 2786 | | 10998 | | 2786 |
| | | | | 43804 | | 695541 | | 695541 | | 43804 |
| | | | 697369 | | 44350086 | | 177097738 | | 44350086 | | 697369 |
| | | 11136544 | | 2830665213 | | 45142367398 | | 45142367398 | | 2830665213 | | 11136544 |
| | 177977851 | | 180689239504 | | 11507555684346 |
|
A206521 as a square array
15 | 186 | 2786 | 43804 | 697369 | 11136544 | 177977851
| 186 | 10998 | 695541 | 44350086 | 2830665213 | 180689239504
| 2786 | 695541 | 177097738 | 45142367398 | 11507555684346
| 43804 | 44350086 | 45142367398
| 697369 | 2830665213
| 11136544
|
A206521 as an upper right triangle
15 | 186 | 2786 | 43804 | 697369 | 11136544 | 177977851
| | 186 | 10998 | 695541 | 44350086 | 2830665213 | 180689239504
| | | 2786 | 695541 | 177097738 | 45142367398 | 11507555684346
| | | | 43804 | 44350086 | 45142367398
| | | | | 697369 | 2830665213
| | | | | | 11136544
| | | | | |
|
|