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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 10 |
| 5 | 24 |
| 6 | 69 |
| 7 | 234 |
| 8 | 914 |
| 9 | 4032 |
| 10 | 19802 |
| 11 | 107041 |
| 12 | 630859 |
| 13 | 4021812 |
| 14 | 27549707 |
| 15 | 201622270 |
| 16 | 1568735464 |
| 17 | 12920985108 |
| 18 | 112241670843 |
| 19 | 1024937136804 |
| 20 | 9809798369155 |
| 21 | 98155778186641 |
| 22 | 1024366679885047 |
| 23 | 11126807259317974 |
[1,2,3,5,10,24,69,234,914,4032,19802,107041, 630859,4021812,27549707,201622270,1568735464, 12920985108,112241670843,1024937136804, 9809798369155,98155778186641,1024366679885047, 11126807259317974] |