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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 21 |
| 3 | 35 |
| 4 | 95 |
| 5 | 285 |
| 6 | 858 |
| 7 | 2938 |
| 8 | 11126 |
| 9 | 44216 |
| 10 | 186565 |
| 11 | 819633 |
| 12 | 3681703 |
| 13 | 16781413 |
| 14 | 77160382 |
| 15 | 356502109 |
| 16 | 1651886591 |
| 17 | 7666887125 |
| 18 | 35617442101 |
| 19 | 165553926866 |
| 20 | 769750431744 |
| 21 | 3579614404889 |
| 22 | 16648148072359 |
| 23 | 77431993155630 |
[5,21,35,95,285,858,2938,11126,44216,186565, 819633,3681703,16781413,77160382,356502109, 1651886591,7666887125,35617442101,165553926866, 769750431744,3579614404889,16648148072359, 77431993155630] |