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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 286 |
| 3 | 614 |
| 4 | 2153 |
| 5 | 8379 |
| 6 | 30204 |
| 7 | 106323 |
| 8 | 379361 |
| 9 | 1353507 |
| 10 | 4821370 |
| 11 | 17201553 |
| 12 | 61412082 |
| 13 | 219273629 |
| 14 | 783307167 |
| 15 | 2799372207 |
| 16 | 10007499485 |
| 17 | 35788000377 |
| 18 | 128021505315 |
| 19 | 458087897310 |
| 20 | 1639569764368 |
| 21 | 5869713799941 |
| 22 | 21018507103849 |
[16,286,614,2153,8379,30204,106323,379361,1353507, 4821370,17201553,61412082,219273629,783307167, 2799372207,10007499485,35788000377,128021505315, 458087897310,1639569764368,5869713799941, 21018507103849] |