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| n | a(n) |
|---|---|
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 4 |
| 7 | 10 |
| 8 | 27 |
| 9 | 67 |
| 10 | 166 |
| 11 | 396 |
| 12 | 934 |
| 13 | 2168 |
| 14 | 4984 |
| 15 | 11332 |
| 16 | 25584 |
| 17 | 57312 |
| 18 | 127624 |
| 19 | 282560 |
| 20 | 622528 |
| 21 | 1365200 |
| 22 | 2981760 |
| 23 | 6487808 |
| 24 | 14068128 |
| 25 | 30408192 |
| 26 | 65535488 |
| 27 | 140857664 |
| 28 | 301988864 |
| 29 | 645920768 |
| 30 | 1378525824 |
| 31 | 2936008704 |
| 32 | 6241120256 |
| 33 | 13242807552 |
| 34 | 28051496960 |
| 35 | 59324219392 |
[0,0,1,4,10,27,67,166,396,934,2168,4984,11332, 25584,57312,127624,282560,622528,1365200,2981760, 6487808,14068128,30408192,65535488,140857664, 301988864,645920768,1378525824,2936008704, 6241120256,13242807552,28051496960,59324219392] |