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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 111 |
| 3 | 154 |
| 4 | 3645 |
| 5 | 2699 |
| 6 | 1394 |
| 7 | 526 |
| 8 | 613 |
| 9 | 971 |
| 10 | 39 |
| 11 | 44 |
| 12 | 60 |
| 13 | 128 |
| 14 | 149 |
| 15 | 2607 |
| 16 | 23047 |
| 17 | 21876 |
| 18 | 361554 |
| 19 | 403706 |
| 20 | 1674698 |
| 21 | 19210577 |
[13,111,154,3645,2699,1394,526,613,971,39,44,60, 128,149,2607,23047,21876,361554,403706,1674698, 19210577] |