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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 29 |
| 4 | 10 |
| 5 | 2309 |
| 6 | 28 |
| 7 | 1138829 |
| 8 | 20 |
| 9 | 130 |
| 10 | 2308 |
| 11 | 239378649509 |
| 12 | 68 |
| 13 | 461282657605769 |
| 14 | 570569 |
| 15 | 2728 |
| 16 | 208 |
| 17 | 3338236629672919864889 |
| 18 | 154 |
| 19 | 11465419967969569966774409 |
| 20 | 3568 |
| 21 | 570568 |
| 22 | 200560490129 |
| 23 | 447252622660353534197972753024069 |
| 24 | 713 |
| 25 | 77140 |
| 26 | 304250263527208 |
| 27 | 644 |
[1,2,4,29,10,2309,28,1138829,20,130,2308, 239378649509,68,461282657605769,570569,2728,208, 3338236629672919864889,154, 11465419967969569966774409,3568,570568, 200560490129,447252622660353534197972753024069, 713,77140,304250263527208,644] |