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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 8 |
| 5 | 76 |
| 6 | 734 |
| 7 | 7414 |
| 8 | 71986 |
| 9 | 638499 |
| 10 | 5558790 |
| 11 | 47971603 |
| 12 | 410502410 |
| 13 | 3473846885 |
| 14 | 29078659564 |
| 15 | 241699322196 |
| 16 | 1997778940804 |
| 17 | 16429720592636 |
| 18 | 134489816829048 |
| 19 | 1096404231410945 |
| 20 | 8906880161717904 |
| 21 | 72131791267258552 |
| 22 | 582512418898356698 |
| 23 | 4692186192041626600 |
[0,0,0,1,8,76,734,7414,71986,638499,5558790, 47971603,410502410,3473846885,29078659564, 241699322196,1997778940804,16429720592636, 134489816829048,1096404231410945,8906880161717904, 72131791267258552,582512418898356698, 4692186192041626600] |