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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 15 |
| 5 | 27 |
| 6 | 48 |
| 7 | 86 |
| 8 | 156 |
| 9 | 285 |
| 10 | 521 |
| 11 | 950 |
| 12 | 1728 |
| 13 | 3140 |
| 14 | 5707 |
| 15 | 10379 |
| 16 | 18884 |
| 17 | 34362 |
| 18 | 62520 |
| 19 | 113737 |
| 20 | 206897 |
| 21 | 376362 |
| 22 | 684652 |
| 23 | 1245504 |
| 24 | 2265815 |
| 25 | 4121947 |
| 26 | 7498552 |
| 27 | 13641134 |
| 28 | 24815508 |
| 29 | 45143621 |
| 30 | 82124025 |
| 31 | 149397854 |
| 32 | 271780616 |
| 33 | 494415932 |
| 34 | 899427827 |
| 35 | 1636214155 |
[1,2,4,8,15,27,48,86,156,285,521,950,1728,3140, 5707,10379,18884,34362,62520,113737,206897,376362, 684652,1245504,2265815,4121947,7498552,13641134, 24815508,45143621,82124025,149397854,271780616, 494415932,899427827,1636214155] |