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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 7 |
| 6 | 13 |
| 7 | 24 |
| 8 | 46 |
| 9 | 86 |
| 10 | 166 |
| 11 | 314 |
| 12 | 610 |
| 13 | 1163 |
| 14 | 2269 |
| 15 | 4352 |
| 16 | 8518 |
| 17 | 16414 |
| 18 | 32206 |
| 19 | 62292 |
| 20 | 122464 |
| 21 | 237590 |
| 22 | 467842 |
| 23 | 909960 |
| 24 | 1794196 |
| 25 | 3497248 |
| 26 | 6903352 |
| 27 | 13480826 |
| 28 | 26635774 |
| 29 | 52097267 |
| 30 | 103020253 |
| 31 | 201780224 |
| 32 | 399300166 |
| 33 | 783051638 |
| 34 | 1550554582 |
| 35 | 3044061116 |
[1,1,1,2,4,7,13,24,46,86,166,314,610,1163,2269, 4352,8518,16414,32206,62292,122464,237590,467842, 909960,1794196,3497248,6903352,13480826,26635774, 52097267,103020253,201780224,399300166,783051638, 1550554582,3044061116] |