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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 0 |
| 6 | 7 |
| 7 | 10 |
| 8 | 32 |
| 9 | 31 |
| 10 | 71 |
| 11 | 77 |
| 12 | 222 |
| 13 | 342 |
| 14 | 971 |
| 15 | 1936 |
| 16 | 4681 |
| 17 | 9662 |
| 18 | 19440 |
| 19 | 38304 |
| 20 | 76458 |
| 21 | 143542 |
| 22 | 281447 |
| 23 | 536472 |
| 24 | 1051100 |
| 25 | 2039870 |
| 26 | 4055916 |
| 27 | 8030958 |
| 28 | 16168611 |
| 29 | 32510383 |
| 30 | 65705473 |
| 31 | 132895297 |
| 32 | 269206168 |
| 33 | 544002516 |
| 34 | 1099360989 |
| 35 | 2217243856 |
| 36 | 4464684513 |
| 37 | 8975720721 |
[1,0,1,0,7,10,32,31,71,77,222,342,971,1936,4681, 9662,19440,38304,76458,143542,281447,536472, 1051100,2039870,4055916,8030958,16168611,32510383, 65705473,132895297,269206168,544002516,1099360989, 2217243856,4464684513,8975720721] |