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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 13 |
| 5 | 23 |
| 6 | 37 |
| 7 | 59 |
| 8 | 91 |
| 9 | 141 |
| 10 | 217 |
| 11 | 341 |
| 12 | 541 |
| 13 | 879 |
| 14 | 1453 |
| 15 | 2455 |
| 16 | 4217 |
| 17 | 7371 |
| 18 | 13047 |
| 19 | 23375 |
| 20 | 42259 |
| 21 | 77027 |
| 22 | 141299 |
| 23 | 260695 |
| 24 | 483221 |
| 25 | 899471 |
| 26 | 1680269 |
| 27 | 3149075 |
| 28 | 5918701 |
| 29 | 11153461 |
| 30 | 21067693 |
| 31 | 39881625 |
| 32 | 75647719 |
| 33 | 143756049 |
| 34 | 273654821 |
| 35 | 521769373 |
| 36 | 996334961 |
| 37 | 1905214687 |
[1,3,7,13,23,37,59,91,141,217,341,541,879,1453, 2455,4217,7371,13047,23375,42259,77027,141299, 260695,483221,899471,1680269,3149075,5918701, 11153461,21067693,39881625,75647719,143756049, 273654821,521769373,996334961,1905214687] |