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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| 10 | 14 |
| 11 | 15 |
| 12 | 20 |
| 13 | 24 |
| 14 | 27 |
| 15 | 35 |
| 16 | 48 |
| 17 | 49 |
| 18 | 63 |
| 19 | 80 |
| 20 | 125 |
| 21 | 224 |
| 22 | 2400 |
| 23 | 4374 |
| 24 | 250000 |
| 25 | 78121827 |
| 26 | 205885750000000 |
| 27 | 2251783932057135 |
| 28 | 363797880709171295166015625 |
| 29 | 37252879910233655318543787489 |
| 30 | 639471113830161648869830843378434048 |
| 31 | 386856165263818792142417337638583138065421 |
[1,2,3,4,5,6,7,8,9,14,15,20,24,27,35,48,49,63,80, 125,224,2400,4374,250000,78121827,205885750000000, 2251783932057135,363797880709171295166015625, 37252879910233655318543787489, 639471113830161648869830843378434048, 386856165263818792142417337638583138065421] |