A291684 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 0 | | 1 |
| | | | | | | | | | 0 | | 1 | | 1 |
| | | | | | | | | 0 | | 1 | | 2 | | 2 |
| | | | | | | | 0 | | 1 | | 5 | | 5 | | 5 |
| | | | | | | 0 | | 1 | | 9 | | 12 | | 14 | | 16 |
| | | | | | 0 | | 1 | | 17 | | 36 | | 36 | | 47 | | 52 |
| | | | | 0 | | 1 | | 31 | | 81 | | 98 | | 117 | | 166 | | 189 |
| | | | 0 | | 1 | | 57 | | 174 | | 327 | | 327 | | 425 | | 627 | | 683 |
| | | 0 | | 1 | | 101 | | 413 | | 788 | | 988 | | 1116 | | 1633 | | 2400 | | 2621 |
| | 0 | | 1 | | 185 | | 889 | | 1890 | | 3392 | | 3392 | | 4291 | | 6471 | | 9459 | | 10061 |
|
A291684 as a square array
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 2 | 5 | 9 | 17 | 31 | 57 | 101 | 185
| 2 | 5 | 12 | 36 | 81 | 174 | 413 | 889
| 5 | 14 | 36 | 98 | 327 | 788 | 1890
| 16 | 47 | 117 | 327 | 988 | 3392
| 52 | 166 | 425 | 1116 | 3392
| 189 | 627 | 1633 | 4291
| 683 | 2400 | 6471
| 2621 | 9459
| 10061
|
A291684 as an upper right triangle
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | | 1 | 2 | 5 | 9 | 17 | 31 | 57 | 101 | 185
| | | | 2 | 5 | 12 | 36 | 81 | 174 | 413 | 889
| | | | | 5 | 14 | 36 | 98 | 327 | 788 | 1890
| | | | | | 16 | 47 | 117 | 327 | 988 | 3392
| | | | | | | 52 | 166 | 425 | 1116 | 3392
| | | | | | | | 189 | 627 | 1633 | 4291
| | | | | | | | | 683 | 2400 | 6471
| | | | | | | | | | 2621 | 9459
| | | | | | | | | | | 10061
|
|