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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 3 |
| 4 | 8 |
| 5 | 33 |
| 6 | 8 |
| 7 | 21 |
| 8 | 352 |
| 9 | 352 |
| 10 | 21 |
| 11 | 55 |
| 12 | 3721 |
| 13 | 14704 |
| 14 | 3721 |
| 15 | 55 |
| 16 | 144 |
| 17 | 39254 |
| 18 | 609961 |
| 19 | 609961 |
| 20 | 39254 |
| 21 | 144 |
| 22 | 377 |
| 23 | 413908 |
| 24 | 25266305 |
| 25 | 98570764 |
| 26 | 25266305 |
| 27 | 413908 |
| 28 | 377 |
| 29 | 987 |
| 30 | 4363921 |
| 31 | 1046229704 |
| 32 | 15891102336 |
| 33 | 15891102336 |
| 34 | 1046229704 |
| 35 | 4363921 |
| 36 | 987 |
| 37 | 2584 |
[1,3,3,8,33,8,21,352,352,21,55,3721,14704,3721,55, 144,39254,609961,609961,39254,144,377,413908, 25266305,98570764,25266305,413908,377,987,4363921, 1046229704,15891102336,15891102336,1046229704, 4363921,987,2584] |