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| n | a(n) |
|---|---|
| 0 | 30 |
| 1 | 31 |
| 2 | 1890 |
| 3 | 1921 |
| 4 | 117150 |
| 5 | 119071 |
| 6 | 7261410 |
| 7 | 7380481 |
| 8 | 450090270 |
| 9 | 457470751 |
| 10 | 27898335330 |
| 11 | 28355806081 |
| 12 | 1729246700190 |
| 13 | 1757602506271 |
| 14 | 107185397076450 |
| 15 | 108942999582721 |
| 16 | 6643765372039710 |
| 17 | 6752708371622431 |
| 18 | 411806267669385570 |
| 19 | 418558976041008001 |
| 20 | 25525344830129865630 |
[30,31,1890,1921,117150,119071,7261410,7380481, 450090270,457470751,27898335330,28355806081, 1729246700190,1757602506271,107185397076450, 108942999582721,6643765372039710,6752708371622431, 411806267669385570,418558976041008001, 25525344830129865630] |