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| n | a(n) |
|---|---|
| 6 | 1 |
| 7 | 4 |
| 8 | 11 |
| 9 | 26 |
| 10 | 55 |
| 11 | 109 |
| 12 | 208 |
| 13 | 389 |
| 14 | 722 |
| 15 | 1339 |
| 16 | 2488 |
| 17 | 4634 |
| 18 | 8646 |
| 19 | 16146 |
| 20 | 30160 |
| 21 | 56333 |
| 22 | 105198 |
| 23 | 196413 |
| 24 | 366672 |
| 25 | 684475 |
| 26 | 1277701 |
| 27 | 2385080 |
| 28 | 4452277 |
| 29 | 8311254 |
| 30 | 15515091 |
| 31 | 28963012 |
| 32 | 54067156 |
| 33 | 100930660 |
| 34 | 188413624 |
| 35 | 351723304 |
| 36 | 656583197 |
[1,4,11,26,55,109,208,389,722,1339,2488,4634,8646, 16146,30160,56333,105198,196413,366672,684475, 1277701,2385080,4452277,8311254,15515091,28963012, 54067156,100930660,188413624,351723304,656583197] |