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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 537 |
| 3 | 537 |
| 4 | 3199 |
| 5 | 8345 |
| 6 | 3199 |
| 7 | 17837 |
| 8 | 113391 |
| 9 | 113391 |
| 10 | 17837 |
| 11 | 95679 |
| 12 | 1383617 |
| 13 | 3793647 |
| 14 | 1383617 |
| 15 | 95679 |
| 16 | 498597 |
| 17 | 15633605 |
| 18 | 114840543 |
| 19 | 114840543 |
| 20 | 15633605 |
| 21 | 498597 |
| 22 | 2546207 |
| 23 | 165947729 |
| 24 | 3160338477 |
| 25 | 9226436673 |
| 26 | 3160338477 |
| 27 | 165947729 |
[81,537,537,3199,8345,3199,17837,113391,113391, 17837,95679,1383617,3793647,1383617,95679,498597, 15633605,114840543,114840543,15633605,498597, 2546207,165947729,3160338477,9226436673, 3160338477,165947729] |