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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 148 |
| 3 | 1669 |
| 4 | 16878 |
| 5 | 163495 |
| 6 | 1549297 |
| 7 | 14492156 |
| 8 | 134429604 |
| 9 | 1239807015 |
| 10 | 11386939467 |
| 11 | 104257566078 |
| 12 | 952281922551 |
| 13 | 8681609266794 |
| 14 | 79026329849968 |
| 15 | 718456060049941 |
| 16 | 6524950672498742 |
| 17 | 59207190970359999 |
| 18 | 536844632687526915 |
[8,148,1669,16878,163495,1549297,14492156, 134429604,1239807015,11386939467,104257566078, 952281922551,8681609266794,79026329849968, 718456060049941,6524950672498742, 59207190970359999,536844632687526915] |