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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 2 |
| 10 | 3 |
| 11 | 9 |
| 12 | 20 |
| 13 | 43 |
| 14 | 85 |
| 15 | 183 |
| 16 | 394 |
| 17 | 1010 |
| 18 | 2254 |
| 19 | 5589 |
| 20 | 12383 |
| 21 | 31226 |
| 22 | 71153 |
| 23 | 182382 |
| 24 | 426055 |
| 25 | 1105686 |
| 26 | 2615167 |
| 27 | 6906858 |
| 28 | 16607500 |
| 29 | 44276140 |
| 30 | 107836782 |
| 31 | 290059089 |
| 32 | 715361182 |
| 33 | 1937639649 |
| 34 | 4829754357 |
| 35 | 13160903826 |
| 36 | 33112002835 |
| 37 | 90800047879 |
[1,1,1,1,1,1,1,1,1,2,3,9,20,43,85,183,394,1010, 2254,5589,12383,31226,71153,182382,426055,1105686, 2615167,6906858,16607500,44276140,107836782, 290059089,715361182,1937639649,4829754357, 13160903826,33112002835,90800047879] |