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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 2 |
| 7 | 4 |
| 8 | 8 |
| 9 | 15 |
| 10 | 30 |
| 11 | 59 |
| 12 | 116 |
| 13 | 228 |
| 14 | 448 |
| 15 | 881 |
| 16 | 1732 |
| 17 | 3405 |
| 18 | 6694 |
| 19 | 13160 |
| 20 | 25872 |
| 21 | 50863 |
| 22 | 99994 |
| 23 | 196583 |
| 24 | 386472 |
| 25 | 759784 |
| 26 | 1493696 |
| 27 | 2936529 |
| 28 | 5773064 |
| 29 | 11349545 |
| 30 | 22312618 |
| 31 | 43865452 |
| 32 | 86237208 |
| 33 | 169537887 |
| 34 | 333302710 |
| 35 | 655255875 |
| 36 | 1288199132 |
[0,0,1,0,1,2,4,8,15,30,59,116,228,448,881,1732, 3405,6694,13160,25872,50863,99994,196583,386472, 759784,1493696,2936529,5773064,11349545,22312618, 43865452,86237208,169537887,333302710,655255875, 1288199132] |