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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 72 |
| 3 | 362 |
| 4 | 3591 |
| 5 | 37910 |
| 6 | 398859 |
| 7 | 4288358 |
| 8 | 46208517 |
| 9 | 499581127 |
| 10 | 5409406326 |
| 11 | 58631184705 |
| 12 | 635886643605 |
| 13 | 6899110045327 |
| 14 | 74869703068990 |
| 15 | 812605582421642 |
| 16 | 8820444837792716 |
| 17 | 95746681645850346 |
| 18 | 1039371314814583752 |
[1,72,362,3591,37910,398859,4288358,46208517, 499581127,5409406326,58631184705,635886643605, 6899110045327,74869703068990,812605582421642, 8820444837792716,95746681645850346, 1039371314814583752] |