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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 13 |
| 4 | 29 |
| 5 | 53 |
| 6 | 117 |
| 7 | 213 |
| 8 | 469 |
| 9 | 853 |
| 10 | 1877 |
| 11 | 3413 |
| 12 | 7509 |
| 13 | 13653 |
| 14 | 30037 |
| 15 | 54613 |
| 16 | 120149 |
| 17 | 218453 |
| 18 | 480597 |
| 19 | 873813 |
| 20 | 1922389 |
| 21 | 3495253 |
| 22 | 7689557 |
| 23 | 13981013 |
| 24 | 30758229 |
| 25 | 55924053 |
| 26 | 123032917 |
| 27 | 223696213 |
| 28 | 492131669 |
| 29 | 894784853 |
| 30 | 1968526677 |
| 31 | 3579139413 |
| 32 | 7874106709 |
| 33 | 14316557653 |
| 34 | 31496426837 |
| 35 | 57266230613 |
[1,3,7,13,29,53,117,213,469,853,1877,3413,7509, 13653,30037,54613,120149,218453,480597,873813, 1922389,3495253,7689557,13981013,30758229, 55924053,123032917,223696213,492131669,894784853, 1968526677,3579139413,7874106709,14316557653, 31496426837,57266230613] |