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| n | a(n) |
|---|---|
| 1 | 48 |
| 2 | 115 |
| 3 | 652 |
| 4 | 2449 |
| 5 | 5256 |
| 6 | 24103 |
| 7 | 104308 |
| 8 | 305402 |
| 9 | 1256376 |
| 10 | 5925416 |
| 11 | 21507088 |
| 12 | 91126064 |
| 13 | 441481332 |
| 14 | 1976848566 |
| 15 | 8589712868 |
| 16 | 45244127036 |
| 17 | 228262628800 |
[48,115,652,2449,5256,24103,104308,305402,1256376, 5925416,21507088,91126064,441481332,1976848566, 8589712868,45244127036,228262628800] |