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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 33 |
| 3 | 218 |
| 4 | 1302 |
| 5 | 6367 |
| 6 | 28116 |
| 7 | 116212 |
| 8 | 452177 |
| 9 | 1661479 |
| 10 | 5791018 |
| 11 | 19242699 |
| 12 | 61244524 |
| 13 | 187461137 |
| 14 | 553667969 |
| 15 | 1582231440 |
| 16 | 4384799386 |
| 17 | 11806014470 |
| 18 | 30933256186 |
| 19 | 78981312321 |
| 20 | 196763074685 |
| 21 | 478829103169 |
| 22 | 1139452276535 |
[10,33,218,1302,6367,28116,116212,452177,1661479, 5791018,19242699,61244524,187461137,553667969, 1582231440,4384799386,11806014470,30933256186, 78981312321,196763074685,478829103169, 1139452276535] |