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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 13 |
| 5 | 36 |
| 6 | 111 |
| 7 | 349 |
| 8 | 1133 |
| 9 | 3835 |
| 10 | 13299 |
| 11 | 46793 |
| 12 | 168540 |
| 13 | 617598 |
| 14 | 2288874 |
| 15 | 8594852 |
| 16 | 32693547 |
| 17 | 125485318 |
| 18 | 485873816 |
| 19 | 1898627904 |
| 20 | 7475334190 |
| 21 | 29623307282 |
| 22 | 118180762246 |
| 23 | 474383981552 |
| 24 | 1914246196593 |
| 25 | 7763801604601 |
| 26 | 31644811150228 |
| 27 | 129553820197523 |
| 28 | 532564182968862 |
| 29 | 2198003199076504 |
[1,1,2,5,13,36,111,349,1133,3835,13299,46793, 168540,617598,2288874,8594852,32693547,125485318, 485873816,1898627904,7475334190,29623307282, 118180762246,474383981552,1914246196593, 7763801604601,31644811150228,129553820197523, 532564182968862,2198003199076504] |