The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 3 | 13 |
| 4 | 31 |
| 5 | 91 |
| 6 | 133 |
| 7 | 241 |
| 8 | 307 |
| 9 | 463 |
| 10 | 757 |
| 11 | 871 |
| 12 | 1261 |
| 13 | 1561 |
| 14 | 1723 |
| 15 | 2071 |
| 16 | 2653 |
| 17 | 3307 |
| 18 | 3541 |
| 19 | 4291 |
| 20 | 4831 |
| 21 | 5113 |
| 22 | 6007 |
| 23 | 6643 |
| 24 | 7657 |
| 25 | 9121 |
| 26 | 9901 |
| 27 | 10303 |
| 28 | 11131 |
| 29 | 11557 |
| 30 | 12433 |
| 31 | 15751 |
| 32 | 16771 |
| 33 | 18361 |
| 34 | 18907 |
| 35 | 21757 |
| 36 | 22351 |
| 37 | 24181 |
| 38 | 26083 |
| 39 | 27391 |
| 40 | 29413 |
| 41 | 31507 |
| 42 | 32221 |
| 43 | 35911 |
| 44 | 36673 |
[13,31,91,133,241,307,463,757,871,1261,1561,1723, 2071,2653,3307,3541,4291,4831,5113,6007,6643,7657, 9121,9901,10303,11131,11557,12433,15751,16771, 18361,18907,21757,22351,24181,26083,27391,29413, 31507,32221,35911,36673] |