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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 24 |
| 2 | 385 |
| 3 | 5220 |
| 4 | 64741 |
| 5 | 760944 |
| 6 | 8633305 |
| 7 | 95554140 |
| 8 | 1038550381 |
| 9 | 11132642664 |
| 10 | 118050851425 |
| 11 | 1241028864660 |
| 12 | 12954973386421 |
| 13 | 134451901289184 |
| 14 | 1388638534032745 |
| 15 | 14283461073576780 |
| 16 | 146408292464020861 |
[1,24,385,5220,64741,760944,8633305,95554140, 1038550381,11132642664,118050851425,1241028864660, 12954973386421,134451901289184,1388638534032745, 14283461073576780,146408292464020861] |