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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 9 |
| 3 | 41 |
| 4 | 126 |
| 5 | 224 |
| 6 | 934 |
| 7 | 2741 |
| 8 | 5225 |
| 9 | 20537 |
| 10 | 55667 |
| 11 | 113588 |
| 12 | 422541 |
| 13 | 1125360 |
| 14 | 2473769 |
| 15 | 8840311 |
| 16 | 23068806 |
| 17 | 53641026 |
| 18 | 184488860 |
| 19 | 476641936 |
| 20 | 1157699906 |
| 21 | 3848451987 |
| 22 | 9887622772 |
| 23 | 24862454468 |
| 24 | 80220253420 |
| 25 | 205811182949 |
| 26 | 531847795781 |
[10,9,41,126,224,934,2741,5225,20537,55667,113588, 422541,1125360,2473769,8840311,23068806,53641026, 184488860,476641936,1157699906,3848451987, 9887622772,24862454468,80220253420,205811182949, 531847795781] |