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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 14 |
| 5 | 27 |
| 6 | 58 |
| 7 | 111 |
| 8 | 223 |
| 9 | 424 |
| 10 | 817 |
| 11 | 1527 |
| 12 | 2870 |
| 13 | 5279 |
| 14 | 9710 |
| 15 | 17622 |
| 16 | 31877 |
| 17 | 57100 |
| 18 | 101887 |
| 19 | 180406 |
| 20 | 318106 |
| 21 | 557453 |
| 22 | 972796 |
| 23 | 1688797 |
| 24 | 2920123 |
| 25 | 5026410 |
| 26 | 8619551 |
| 27 | 14722230 |
| 28 | 25057499 |
| 29 | 42494975 |
| 30 | 71832114 |
| 31 | 121024876 |
| 32 | 203286806 |
| 33 | 340435588 |
| 34 | 568496753 |
| 35 | 946695386 |
[1,1,3,6,14,27,58,111,223,424,817,1527,2870,5279, 9710,17622,31877,57100,101887,180406,318106, 557453,972796,1688797,2920123,5026410,8619551, 14722230,25057499,42494975,71832114,121024876, 203286806,340435588,568496753,946695386] |