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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 41 |
| 3 | 283 |
| 4 | 1448 |
| 5 | 6687 |
| 6 | 29847 |
| 7 | 128985 |
| 8 | 528548 |
| 9 | 2040761 |
| 10 | 7473305 |
| 11 | 26161231 |
| 12 | 87951899 |
| 13 | 284648868 |
| 14 | 888502064 |
| 15 | 2680360507 |
| 16 | 7832561949 |
| 17 | 22221791738 |
| 18 | 61339985932 |
| 19 | 165058105622 |
| 20 | 433724300901 |
| 21 | 1114689972046 |
| 22 | 2805892577013 |
[10,41,283,1448,6687,29847,128985,528548,2040761, 7473305,26161231,87951899,284648868,888502064, 2680360507,7832561949,22221791738,61339985932, 165058105622,433724300901,1114689972046, 2805892577013] |