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| n | a(n) |
|---|---|
| 1 | 431 |
| 2 | 433 |
| 3 | 18521 |
| 4 | 18523 |
| 5 | 1940597 |
| 6 | 1940599 |
| 7 | 3455999 |
| 8 | 3456001 |
| 9 | 30876497 |
| 10 | 30876499 |
| 11 | 88723727 |
| 12 | 88723729 |
| 13 | 105468749 |
| 14 | 105468751 |
| 15 | 164625749 |
| 16 | 164625751 |
| 17 | 431999999 |
| 18 | 432000001 |
| 19 | 451733057 |
| 20 | 451733059 |
| 21 | 615093749 |
| 22 | 615093751 |
| 23 | 746495999 |
| 24 | 746496001 |
| 25 | 1039436927 |
| 26 | 1039436929 |
[431,433,18521,18523,1940597,1940599,3455999, 3456001,30876497,30876499,88723727,88723729, 105468749,105468751,164625749,164625751,431999999, 432000001,451733057,451733059,615093749,615093751, 746495999,746496001,1039436927,1039436929] |