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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 36 |
| 3 | 412 |
| 4 | 4371 |
| 5 | 45118 |
| 6 | 460161 |
| 7 | 4663480 |
| 8 | 47087659 |
| 9 | 474329018 |
| 10 | 4770493824 |
| 11 | 47924729801 |
| 12 | 481060418376 |
| 13 | 4825817782189 |
| 14 | 48387664042144 |
| 15 | 484992123875142 |
| 16 | 4859631205206357 |
| 17 | 48681601698828085 |
| 18 | 487571138851821274 |
| 19 | 4882443976989269954 |
| 20 | 48884842829781286250 |
| 21 | 489393391263430721900 |
[2,36,412,4371,45118,460161,4663480,47087659, 474329018,4770493824,47924729801,481060418376, 4825817782189,48387664042144,484992123875142, 4859631205206357,48681601698828085, 487571138851821274,4882443976989269954, 48884842829781286250,489393391263430721900] |