The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 9 |
| 4 | 16 |
| 5 | 17 |
| 6 | 17 |
| 7 | 15 |
| 8 | 16 |
| 9 | 17 |
| 10 | 18 |
| 11 | 19 |
| 12 | 21 |
| 13 | 27 |
| 14 | 32 |
| 15 | 39 |
| 16 | 47 |
| 17 | 51 |
| 18 | 53 |
[1,4,9,16,17,17,15,16,17,18,19,21,27,32,39,47,51, 53] |