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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 14 |
| 4 | 48 |
| 5 | 152 |
| 6 | 496 |
| 7 | 1600 |
| 8 | 5184 |
| 9 | 16768 |
| 10 | 54272 |
| 11 | 175616 |
| 12 | 568320 |
| 13 | 1839104 |
| 14 | 5951488 |
[1,5,14,48,152,496,1600,5184,16768,54272,175616, 568320,1839104,5951488] |