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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 33 |
| 4 | 35 |
| 5 | 68 |
| 6 | 3435 |
| 7 | 3503 |
| 8 | 6938 |
| 9 | 114511 |
| 10 | 121449 |
| 11 | 235960 |
| 12 | 11919449 |
| 13 | 12155409 |
| 14 | 24074858 |
| 15 | 397353137 |
| 16 | 421427995 |
| 17 | 818781132 |
| 18 | 41360484595 |
| 19 | 42179265727 |
| 20 | 83539750322 |
| 21 | 1378815270879 |
| 22 | 1462355021201 |
| 23 | 2841170292080 |
| 24 | 143520869625201 |
| 25 | 146362039917281 |
[1,1,2,33,35,68,3435,3503,6938,114511,121449, 235960,11919449,12155409,24074858,397353137, 421427995,818781132,41360484595,42179265727, 83539750322,1378815270879,1462355021201, 2841170292080,143520869625201,146362039917281] |