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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 13 |
| 5 | 8 |
| 6 | 26 |
| 7 | 19 |
| 8 | 163 |
| 9 | 361 |
| 10 | 1223 |
| 11 | 1307 |
| 12 | 16477 |
| 13 | 5749 |
| 14 | 83977 |
| 15 | 88267 |
| 16 | 280817 |
| 17 | 147916 |
| 18 | 1377406 |
| 19 | 2839897 |
| 20 | 58552633 |
| 21 | 60492571 |
| 22 | 63263911 |
| 23 | 65468386 |
| 24 | 403117367 |
| 25 | 549883871 |
| 26 | 579629587 |
| 27 | 596790577 |
| 28 | 1864736021 |
| 29 | 1912541636 |
| 30 | 29293503812 |
| 31 | 59449633388 |
| 32 | 969992016739 |
[0,1,1,13,8,26,19,163,361,1223,1307,16477,5749, 83977,88267,280817,147916,1377406,2839897, 58552633,60492571,63263911,65468386,403117367, 549883871,579629587,596790577,1864736021, 1912541636,29293503812,59449633388,969992016739] |