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| n | a(n) |
|---|---|
| 1 | -1 |
| 2 | 9 |
| 3 | 67 |
| 4 | 221 |
| 5 | 519 |
| 6 | 1009 |
| 7 | 1739 |
| 8 | 2757 |
| 9 | 4111 |
| 10 | 5849 |
| 11 | 8019 |
| 12 | 10669 |
| 13 | 13847 |
| 14 | 17601 |
| 15 | 21979 |
| 16 | 27029 |
| 17 | 32799 |
| 18 | 39337 |
| 19 | 46691 |
| 20 | 54909 |
| 21 | 64039 |
| 22 | 74129 |
| 23 | 85227 |
| 24 | 97381 |
| 25 | 110639 |
| 26 | 125049 |
| 27 | 140659 |
| 28 | 157517 |
| 29 | 175671 |
| 30 | 195169 |
| 31 | 216059 |
| 32 | 238389 |
| 33 | 262207 |
| 34 | 287561 |
| 35 | 314499 |
| 36 | 343069 |
| 37 | 373319 |
[-1,9,67,221,519,1009,1739,2757,4111,5849,8019, 10669,13847,17601,21979,27029,32799,39337,46691, 54909,64039,74129,85227,97381,110639,125049, 140659,157517,175671,195169,216059,238389,262207, 287561,314499,343069,373319] |