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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 153 |
| 4 | 231 |
| 5 | 351 |
| 6 | 465 |
| 7 | 741 |
| 8 | 6786 |
| 9 | 24531 |
| 10 | 57291 |
| 11 | 58311 |
| 12 | 123753 |
| 13 | 153181 |
| 14 | 167331 |
| 15 | 278631 |
| 16 | 325221 |
| 17 | 372816 |
| 18 | 613278 |
| 19 | 783126 |
| 20 | 1136278 |
| 21 | 1476621 |
| 22 | 1511191 |
| 23 | 1516411 |
| 24 | 1783216 |
| 25 | 2191371 |
| 26 | 2512161 |
| 27 | 2676141 |
| 28 | 9127128 |
| 29 | 37311841 |
| 30 | 44731611 |
| 31 | 51121216 |
| 32 | 135112141 |
| 33 | 137141641 |
[1,6,153,231,351,465,741,6786,24531,57291,58311, 123753,153181,167331,278631,325221,372816,613278, 783126,1136278,1476621,1511191,1516411,1783216, 2191371,2512161,2676141,9127128,37311841,44731611, 51121216,135112141,137141641] |