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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 9 |
| 7 | 32 |
| 8 | 45 |
| 9 | 95 |
| 10 | 275 |
| 11 | 1458 |
| 12 | 2240 |
| 13 | 6561 |
| 14 | 19952 |
| 15 | 131072 |
| 16 | 214245 |
| 17 | 755829 |
| 18 | 2994003 |
| 19 | 19531250 |
| 20 | 37579575 |
| 21 | 134534444 |
| 22 | 577397064 |
| 23 | 4353564672 |
| 24 | 10757577600 |
| 25 | 31495183733 |
| 26 | 154611524732 |
| 27 | 738139162166 |
| 28 | 3124126889325 |
| 29 | 11937232425585 |
| 30 | 65455857159975 |
[1,1,2,3,4,9,32,45,95,275,1458,2240,6561,19952, 131072,214245,755829,2994003,19531250,37579575, 134534444,577397064,4353564672,10757577600, 31495183733,154611524732,738139162166, 3124126889325,11937232425585,65455857159975] |