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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 34 |
| 4 | 245 |
| 5 | 1827 |
| 6 | 13875 |
| 7 | 106612 |
| 8 | 825764 |
| 9 | 6432933 |
| 10 | 50331286 |
| 11 | 395107108 |
| 12 | 3109826951 |
| 13 | 24529022238 |
| 14 | 193811775229 |
| 15 | 1533585360032 |
| 16 | 12149640848560 |
| 17 | 96353382257041 |
| 18 | 764811311969813 |
| 19 | 6075374239940670 |
| 20 | 48292524527331788 |
[1,5,34,245,1827,13875,106612,825764,6432933, 50331286,395107108,3109826951,24529022238, 193811775229,1533585360032,12149640848560, 96353382257041,764811311969813,6075374239940670, 48292524527331788] |