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| n | a(n) |
|---|---|
| 1 | 15 |
| 2 | 21 |
| 3 | 99 |
| 4 | 117 |
| 5 | 153 |
| 6 | 171 |
| 7 | 207 |
| 8 | 429 |
| 9 | 561 |
| 10 | 627 |
| 11 | 663 |
| 12 | 741 |
| 13 | 759 |
| 14 | 783 |
| 15 | 837 |
| 16 | 957 |
| 17 | 999 |
| 18 | 1023 |
| 19 | 1107 |
| 20 | 1161 |
| 21 | 1269 |
| 22 | 1431 |
| 23 | 1593 |
| 24 | 1647 |
| 25 | 1809 |
| 26 | 1917 |
| 27 | 1925 |
| 28 | 1971 |
| 29 | 2133 |
| 30 | 2275 |
| 31 | 2695 |
| 32 | 2975 |
| 33 | 3185 |
| 34 | 4235 |
| 35 | 5005 |
| 36 | 6545 |
| 37 | 6723 |
| 38 | 7209 |
| 39 | 7315 |
| 40 | 7735 |
| 41 | 7857 |
| 42 | 8091 |
| 43 | 8181 |
| 44 | 8343 |
| 45 | 8645 |
| 46 | 8667 |
| 47 | 8829 |
| 48 | 8855 |
[15,21,99,117,153,171,207,429,561,627,663,741,759, 783,837,957,999,1023,1107,1161,1269,1431,1593, 1647,1809,1917,1925,1971,2133,2275,2695,2975,3185, 4235,5005,6545,6723,7209,7315,7735,7857,8091,8181, 8343,8645,8667,8829,8855] |