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| n | a(n) |
|---|---|
| 1 | 356 |
| 2 | 2308 |
| 3 | 14968 |
| 4 | 99086 |
| 5 | 651906 |
| 6 | 4259914 |
| 7 | 27861088 |
| 8 | 183385520 |
| 9 | 1204325662 |
| 10 | 7888272520 |
| 11 | 51703064498 |
| 12 | 339590886580 |
| 13 | 2228614232926 |
| 14 | 14611384819402 |
| 15 | 95829344877344 |
| 16 | 628938894654416 |
| 17 | 4126515883377788 |
| 18 | 27064861657856340 |
[356,2308,14968,99086,651906,4259914,27861088, 183385520,1204325662,7888272520,51703064498, 339590886580,2228614232926,14611384819402, 95829344877344,628938894654416,4126515883377788, 27064861657856340] |