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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 17 |
| 5 | 75 |
| 6 | 92 |
| 7 | 535 |
| 8 | 627 |
| 9 | 14329 |
| 10 | 14956 |
| 11 | 89109 |
| 12 | 104065 |
| 13 | 505369 |
| 14 | 1114803 |
| 15 | 2734975 |
| 16 | 6584753 |
| 17 | 9319728 |
| 18 | 435292241 |
| 19 | 444611969 |
| 20 | 1324516179 |
| 21 | 3093644327 |
| 22 | 7511804833 |
| 23 | 33140863659 |
| 24 | 40652668492 |
| 25 | 236404206119 |
| 26 | 277056874611 |
| 27 | 6331655447561 |
| 28 | 6608712322172 |
[1,1,3,7,17,75,92,535,627,14329,14956,89109, 104065,505369,1114803,2734975,6584753,9319728, 435292241,444611969,1324516179,3093644327, 7511804833,33140863659,40652668492,236404206119, 277056874611,6331655447561,6608712322172] |