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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 6 |
| 3 | 3 |
| 4 | 28 |
| 5 | 23 |
| 6 | 88 |
| 7 | 79 |
| 8 | 368 |
| 9 | 479 |
| 10 | 1120 |
| 11 | 1855 |
| 12 | 7104 |
| 13 | 2943 |
| 14 | 27008 |
| 15 | 27903 |
| 16 | 81664 |
| 17 | 101887 |
| 18 | 517632 |
| 19 | 95231 |
| 20 | 1932288 |
| 21 | 866303 |
| 22 | 6658048 |
| 23 | 7852031 |
| 24 | 24244224 |
| 25 | 18669567 |
| 26 | 99508224 |
| 27 | 112148479 |
| 28 | 312983552 |
| 29 | 447971327 |
| 30 | 2063171584 |
| 31 | 171769855 |
| 32 | 8248033280 |
| 33 | 1842216959 |
[1,1,6,3,28,23,88,79,368,479,1120,1855,7104,2943, 27008,27903,81664,101887,517632,95231,1932288, 866303,6658048,7852031,24244224,18669567,99508224, 112148479,312983552,447971327,2063171584, 171769855,8248033280,1842216959] |