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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 13 |
| 4 | 29 |
| 5 | 53 |
| 6 | 113 |
| 7 | 219 |
| 8 | 475 |
| 9 | 859 |
| 10 | 1819 |
| 11 | 3515 |
| 12 | 7595 |
| 13 | 13739 |
| 14 | 29099 |
| 15 | 56235 |
| 16 | 121771 |
| 17 | 220075 |
| 18 | 465835 |
| 19 | 900011 |
| 20 | 1944491 |
| 21 | 3517355 |
| 22 | 7449515 |
| 23 | 14396331 |
| 24 | 31173547 |
| 25 | 56339371 |
| 26 | 119253931 |
| 27 | 230402987 |
| 28 | 497789867 |
| 29 | 900443051 |
| 30 | 1907076011 |
| 31 | 3685460907 |
| 32 | 7980428203 |
[1,3,7,13,29,53,113,219,475,859,1819,3515,7595, 13739,29099,56235,121771,220075,465835,900011, 1944491,3517355,7449515,14396331,31173547, 56339371,119253931,230402987,497789867,900443051, 1907076011,3685460907,7980428203] |