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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 10 |
| 4 | 64 |
| 5 | 145 |
| 6 | 145 |
| 7 | 874 |
| 8 | 3061 |
| 9 | 3061 |
| 10 | 42427 |
| 11 | 42427 |
| 12 | 396721 |
| 13 | 928162 |
| 14 | 4116808 |
| 15 | 4116808 |
| 16 | 4116808 |
| 17 | 4116808 |
| 18 | 262397134 |
| 19 | 1037238112 |
| 20 | 1037238112 |
| 21 | 8010806914 |
| 22 | 8010806914 |
| 23 | 8010806914 |
| 24 | 196297164568 |
| 25 | 478726701049 |
| 26 | 2173303919935 |
| 27 | 2173303919935 |
| 28 | 2173303919935 |
| 29 | 25050096374896 |
| 30 | 162310851104662 |
[0,1,1,10,64,145,145,874,3061,3061,42427,42427, 396721,928162,4116808,4116808,4116808,4116808, 262397134,1037238112,1037238112,8010806914, 8010806914,8010806914,196297164568,478726701049, 2173303919935,2173303919935,2173303919935, 25050096374896,162310851104662] |