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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 57 |
| 3 | 62 |
| 4 | 347 |
| 5 | 2014 |
| 6 | 8135 |
| 7 | 57465 |
| 8 | 489154 |
| 9 | 3344053 |
| 10 | 25522176 |
| 11 | 209490803 |
| 12 | 1611464796 |
| 13 | 12539285595 |
| 14 | 99907700990 |
| 15 | 785210139974 |
| 16 | 6162648831419 |
| 17 | 48680431762971 |
| 18 | 383689003675080 |
| 19 | 3020361523395059 |
| 20 | 23812409080409828 |
[8,57,62,347,2014,8135,57465,489154,3344053, 25522176,209490803,1611464796,12539285595, 99907700990,785210139974,6162648831419, 48680431762971,383689003675080,3020361523395059, 23812409080409828] |