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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 4 |
| 4 | 8 |
| 5 | 9 |
| 6 | 13 |
| 7 | 16 |
| 8 | 17 |
| 9 | 21 |
| 10 | 25 |
| 11 | 32 |
| 12 | 33 |
| 13 | 36 |
| 14 | 49 |
| 15 | 52 |
| 16 | 53 |
| 17 | 60 |
| 18 | 64 |
[0,1,4,8,9,13,16,17,21,25,32,33,36,49,52,53,60,64] |