The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 4 |
| 4 | 9 |
| 5 | 12 |
| 6 | 16 |
| 7 | 20 |
| 8 | 25 |
| 9 | 33 |
| 10 | 36 |
| 11 | 44 |
| 12 | 48 |
| 13 | 49 |
| 14 | 56 |
| 15 | 60 |
| 16 | 64 |
| 17 | 80 |
| 18 | 81 |
[0,1,4,9,12,16,20,25,33,36,44,48,49,56,60,64,80, 81] |