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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 1 |
| 3 | 3 |
| 4 | 2 |
| 5 | 9 |
| 6 | 3 |
| 7 | 28 |
| 8 | 9 |
| 9 | 137 |
| 10 | 28 |
| 11 | 811 |
| 12 | 137 |
| 13 | 6884 |
| 14 | 811 |
| 15 | 75303 |
| 16 | 6884 |
| 17 | 1133287 |
| 18 | 75303 |
| 19 | 22573092 |
| 20 | 1133287 |
| 21 | 608722751 |
| 22 | 22573092 |
| 23 | 21933950111 |
| 24 | 608722751 |
| 25 | 1064082678978 |
| 26 | 21933950111 |
| 27 | 69200610896639 |
| 28 | 1064082678978 |
| 29 | 6047740350081131 |
| 30 | 69200610896639 |
[1,2,1,3,2,9,3,28,9,137,28,811,137,6884,811,75303, 6884,1133287,75303,22573092,1133287,608722751, 22573092,21933950111,608722751,1064082678978, 21933950111,69200610896639,1064082678978, 6047740350081131,69200610896639] |