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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 5 |
| 5 | 12 |
| 6 | 22 |
| 7 | 38 |
| 8 | 72 |
| 9 | 148 |
| 10 | 301 |
| 11 | 593 |
| 12 | 1149 |
| 13 | 2242 |
| 14 | 4423 |
| 15 | 8743 |
| 16 | 17218 |
| 17 | 33815 |
| 18 | 66436 |
| 19 | 130699 |
| 20 | 257247 |
| 21 | 506154 |
| 22 | 995529 |
| 23 | 1957987 |
| 24 | 3851477 |
| 25 | 7576734 |
| 26 | 14904863 |
| 27 | 29319295 |
| 28 | 57673054 |
| 29 | 113448372 |
| 30 | 223166548 |
| 31 | 438995465 |
| 32 | 863552302 |
| 33 | 1698697632 |
| 34 | 3341519128 |
| 35 | 6573134853 |
[1,1,1,1,5,12,22,38,72,148,301,593,1149,2242,4423, 8743,17218,33815,66436,130699,257247,506154, 995529,1957987,3851477,7576734,14904863,29319295, 57673054,113448372,223166548,438995465,863552302, 1698697632,3341519128,6573134853] |