A208872 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 2 | | 2 |
| | | | | | | | 5 | | 12 | | 5 |
| | | | | | | 15 | | 136 | | 143 | | 15 |
| | | | | | 51 | | 1798 | | 6520 | | 1979 | | 51 |
| | | | | 187 | | 24472 | | 307165 | | 324682 | | 28246 | | 187 |
| | | | 715 | | 334618 | | 14493405 | | 52947540 | | 16205218 | | 405481 | | 715 |
| | | 2795 | | 4578580 | | 683903931 | | 8624977114 | | 9130195864 | | 808928836 | | 5826959 | | 2795 |
| | 11051 | | 62655190 |
|
A208872 as a square array
1 | 2 | 5 | 15 | 51 | 187 | 715 | 2795 | 11051
| 2 | 12 | 136 | 1798 | 24472 | 334618 | 4578580 | 62655190
| 5 | 143 | 6520 | 307165 | 14493405 | 683903931
| 15 | 1979 | 324682 | 52947540 | 8624977114
| 51 | 28246 | 16205218 | 9130195864
| 187 | 405481 | 808928836
| 715 | 5826959
| 2795
|
A208872 as an upper right triangle
1 | 2 | 5 | 15 | 51 | 187 | 715 | 2795 | 11051
| | 2 | 12 | 136 | 1798 | 24472 | 334618 | 4578580 | 62655190
| | | 5 | 143 | 6520 | 307165 | 14493405 | 683903931
| | | | 15 | 1979 | 324682 | 52947540 | 8624977114
| | | | | 51 | 28246 | 16205218 | 9130195864
| | | | | | 187 | 405481 | 808928836
| | | | | | | 715 | 5826959
| | | | | | | | 2795
| | | | | | | |
|
|