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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 7 |
| 3 | 4 |
| 4 | 27 |
| 5 | 30 |
| 6 | 115 |
| 7 | 86 |
| 8 | 431 |
| 9 | 472 |
| 10 | 1919 |
| 11 | 1472 |
| 12 | 7039 |
| 13 | 8128 |
| 14 | 28799 |
| 15 | 22336 |
| 16 | 109983 |
| 17 | 122832 |
| 18 | 487527 |
| 19 | 382948 |
| 20 | 1797179 |
| 21 | 2097070 |
| 22 | 7340251 |
| 23 | 5766910 |
| 24 | 28050307 |
| 25 | 31324926 |
| 26 | 125242755 |
| 27 | 98402234 |
| 28 | 460767469 |
| 29 | 534765502 |
| 30 | 1886417123 |
| 31 | 1465343918 |
| 32 | 7208808667 |
| 33 | 8050966526 |
[1,0,7,4,27,30,115,86,431,472,1919,1472,7039,8128, 28799,22336,109983,122832,487527,382948,1797179, 2097070,7340251,5766910,28050307,31324926, 125242755,98402234,460767469,534765502,1886417123, 1465343918,7208808667,8050966526] |