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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 19 |
| 3 | 37 |
| 4 | 41 |
| 5 | 199 |
| 6 | 239 |
| 7 | 311 |
| 8 | 587 |
| 9 | 661 |
| 10 | 941 |
| 11 | 967 |
| 12 | 1009 |
| 13 | 1997 |
| 14 | 4993 |
| 15 | 4999 |
| 16 | 5393 |
| 17 | 5651 |
| 18 | 6911 |
| 19 | 9109 |
| 20 | 9397 |
| 21 | 9679 |
| 22 | 9829 |
| 23 | 19417 |
| 24 | 20233 |
| 25 | 22549 |
| 26 | 27397 |
| 27 | 29389 |
| 28 | 31387 |
| 29 | 39989 |
| 30 | 71419 |
| 31 | 71569 |
| 32 | 90599 |
| 33 | 91951 |
| 34 | 95369 |
| 35 | 97103 |
| 36 | 98909 |
| 37 | 99023 |
| 38 | 160009 |
| 39 | 225919 |
| 40 | 267389 |
| 41 | 313991 |
| 42 | 328849 |
[7,19,37,41,199,239,311,587,661,941,967,1009,1997, 4993,4999,5393,5651,6911,9109,9397,9679,9829, 19417,20233,22549,27397,29389,31387,39989,71419, 71569,90599,91951,95369,97103,98909,99023,160009, 225919,267389,313991,328849] |