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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 6 |
| 7 | 11 |
| 8 | 22 |
| 9 | 43 |
| 10 | 89 |
| 11 | 183 |
| 12 | 384 |
| 13 | 812 |
| 14 | 1738 |
| 15 | 3742 |
| 16 | 8125 |
| 17 | 17735 |
| 18 | 38941 |
| 19 | 85898 |
| 20 | 190328 |
| 21 | 423320 |
| 22 | 944933 |
| 23 | 2115941 |
| 24 | 4752138 |
| 25 | 10701191 |
| 26 | 24157460 |
| 27 | 54658278 |
| 28 | 123930534 |
| 29 | 281546031 |
| 30 | 640785749 |
| 31 | 1460879893 |
| 32 | 3335858947 |
| 33 | 7628666743 |
| 34 | 17470228499 |
| 35 | 40060975624 |
[0,0,1,1,2,3,6,11,22,43,89,183,384,812,1738,3742, 8125,17735,38941,85898,190328,423320,944933, 2115941,4752138,10701191,24157460,54658278, 123930534,281546031,640785749,1460879893, 3335858947,7628666743,17470228499,40060975624] |