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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 4 |
| 6 | 1 |
| 7 | 1 |
| 8 | 5 |
| 9 | 21 |
| 10 | 1 |
| 11 | 1 |
| 12 | 15 |
| 13 | 145 |
| 14 | 189 |
| 15 | 1 |
| 16 | 1 |
| 17 | 21 |
| 18 | 1122 |
| 19 | 7477 |
| 20 | 1941 |
| 21 | 1 |
| 22 | 1 |
| 23 | 57 |
| 24 | 7886 |
| 25 | 425488 |
| 26 | 760736 |
| 27 | 28032 |
| 28 | 1 |
| 29 | 1 |
| 30 | 85 |
| 31 | 58446 |
| 32 | 20924732 |
| 33 | 399858087 |
| 34 | 122958209 |
| 35 | 448157 |
| 36 | 1 |
| 37 | 1 |
| 38 | 220 |
| 39 | 405196 |
| 40 | 1102544770 |
[1,1,1,1,4,1,1,5,21,1,1,15,145,189,1,1,21,1122, 7477,1941,1,1,57,7886,425488,760736,28032,1,1,85, 58446,20924732,399858087,122958209,448157,1,1,220, 405196,1102544770] |