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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 3 |
| 3 | 7 |
| 4 | 11 |
| 5 | 23 |
| 6 | 59 |
| 7 | 87 |
| 8 | 203 |
| 9 | 503 |
| 10 | 571 |
| 11 | 727 |
| 12 | 2507 |
| 13 | 3831 |
| 14 | 13627 |
| 15 | 27095 |
| 16 | 52939 |
| 17 | 129015 |
| 18 | 145467 |
| 19 | 515799 |
| 20 | 566731 |
| 21 | 1799927 |
| 22 | 3583291 |
| 23 | 8388055 |
| 24 | 8392395 |
| 25 | 26032119 |
| 26 | 62519355 |
| 27 | 90054359 |
| 28 | 2614731 |
| 29 | 230192887 |
| 30 | 995732795 |
| 31 | 1476386263 |
| 32 | 402697931 |
| 33 | 2122020855 |
| 34 | 6569769019 |
[1,3,3,7,11,23,59,87,203,503,571,727,2507,3831, 13627,27095,52939,129015,145467,515799,566731, 1799927,3583291,8388055,8392395,26032119,62519355, 90054359,2614731,230192887,995732795,1476386263, 402697931,2122020855,6569769019] |