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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 34 |
| 3 | 124 |
| 4 | 456 |
| 5 | 1686 |
| 6 | 6232 |
| 7 | 23034 |
| 8 | 85130 |
| 9 | 314626 |
| 10 | 1162804 |
| 11 | 4297528 |
| 12 | 15882942 |
| 13 | 58700688 |
| 14 | 216947890 |
| 15 | 801802986 |
| 16 | 2963329250 |
| 17 | 10951967500 |
| 18 | 40476633544 |
| 19 | 149594843398 |
| 20 | 552877431048 |
| 21 | 2043342182250 |
| 22 | 7551849721642 |
| 23 | 27910368960066 |
[10,34,124,456,1686,6232,23034,85130,314626, 1162804,4297528,15882942,58700688,216947890, 801802986,2963329250,10951967500,40476633544, 149594843398,552877431048,2043342182250, 7551849721642,27910368960066] |