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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 144 |
| 3 | 1040 |
| 4 | 9308 |
| 5 | 84948 |
| 6 | 771300 |
| 7 | 7016284 |
| 8 | 63780144 |
| 9 | 579907180 |
| 10 | 5272264616 |
| 11 | 47934377596 |
| 12 | 435805897172 |
| 13 | 3962236677384 |
| 14 | 36023613993928 |
| 15 | 327517339347916 |
| 16 | 2977702208511048 |
| 17 | 27072492754395896 |
| 18 | 246136048094770872 |
[8,144,1040,9308,84948,771300,7016284,63780144, 579907180,5272264616,47934377596,435805897172, 3962236677384,36023613993928,327517339347916, 2977702208511048,27072492754395896, 246136048094770872] |