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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 11 |
| 4 | 27 |
| 5 | 33 |
| 6 | 69 |
| 7 | 77 |
| 8 | 141 |
| 9 | 151 |
| 10 | 251 |
| 11 | 263 |
| 12 | 407 |
| 13 | 421 |
| 14 | 617 |
| 15 | 633 |
| 16 | 889 |
| 17 | 907 |
| 18 | 1231 |
| 19 | 1251 |
| 20 | 1651 |
| 21 | 1673 |
| 22 | 2157 |
| 23 | 2181 |
| 24 | 2757 |
| 25 | 2783 |
| 26 | 3459 |
| 27 | 3487 |
| 28 | 4271 |
| 29 | 4301 |
| 30 | 5201 |
| 31 | 5233 |
| 32 | 6257 |
| 33 | 6291 |
| 34 | 7447 |
| 35 | 7483 |
| 36 | 8779 |
| 37 | 8817 |
| 38 | 10261 |
| 39 | 10301 |
| 40 | 11901 |
| 41 | 11943 |
| 42 | 13707 |
| 43 | 13751 |
| 44 | 15687 |
| 45 | 15733 |
| 46 | 17849 |
[1,3,7,11,27,33,69,77,141,151,251,263,407,421,617, 633,889,907,1231,1251,1651,1673,2157,2181,2757, 2783,3459,3487,4271,4301,5201,5233,6257,6291,7447, 7483,8779,8817,10261,10301,11901,11943,13707, 13751,15687,15733,17849] |