The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 10 |
| 10 | 12 |
| 11 | 14 |
| 12 | 16 |
| 13 | 18 |
| 14 | 24 |
| 15 | 30 |
| 16 | 36 |
| 17 | 42 |
| 18 | 48 |
| 19 | 60 |
| 20 | 90 |
| 21 | 210 |
[1,2,3,4,5,6,7,8,10,12,14,16,18,24,30,36,42,48,60, 90,210] |