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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 16 |
| 6 | 30 |
| 7 | 58 |
| 8 | 110 |
| 9 | 209 |
| 10 | 397 |
| 11 | 753 |
| 12 | 1429 |
| 13 | 2711 |
| 14 | 5143 |
| 15 | 9757 |
| 16 | 18511 |
| 17 | 35117 |
| 18 | 66621 |
| 19 | 126389 |
| 20 | 239781 |
| 21 | 454897 |
| 22 | 863010 |
| 23 | 1637260 |
| 24 | 3106138 |
| 25 | 5892821 |
| 26 | 11179603 |
| 27 | 21209446 |
| 28 | 40237641 |
| 29 | 76337091 |
| 30 | 144823431 |
| 31 | 274752731 |
| 32 | 521249018 |
| 33 | 988891100 |
| 34 | 1876081530 |
| 35 | 3559220898 |
| 36 | 6752400377 |
[1,1,2,4,8,16,30,58,110,209,397,753,1429,2711, 5143,9757,18511,35117,66621,126389,239781,454897, 863010,1637260,3106138,5892821,11179603,21209446, 40237641,76337091,144823431,274752731,521249018, 988891100,1876081530,3559220898,6752400377] |