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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 6 |
| 3 | 14 |
| 4 | 34 |
| 5 | 74 |
| 6 | 159 |
| 7 | 324 |
| 8 | 657 |
| 9 | 1286 |
| 10 | 2488 |
| 11 | 4702 |
| 12 | 8790 |
| 13 | 16146 |
| 14 | 29326 |
| 15 | 52526 |
| 16 | 93064 |
| 17 | 162910 |
| 18 | 282267 |
| 19 | 483792 |
| 20 | 821182 |
| 21 | 1380052 |
| 22 | 2297972 |
| 23 | 3791220 |
| 24 | 6200379 |
| 25 | 10053018 |
| 26 | 16165158 |
| 27 | 25782702 |
| 28 | 40801449 |
| 29 | 64075416 |
| 30 | 99882597 |
| 31 | 154577022 |
| 32 | 237551012 |
| 33 | 362577214 |
| 34 | 549750200 |
[1,2,6,14,34,74,159,324,657,1286,2488,4702,8790, 16146,29326,52526,93064,162910,282267,483792, 821182,1380052,2297972,3791220,6200379,10053018, 16165158,25782702,40801449,64075416,99882597, 154577022,237551012,362577214,549750200] |