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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
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 | 0 |
| 4 | 2 |
| 5 | 17 |
| 6 | 101 |
| 7 | 545 |
| 8 | 2935 |
| 9 | 16351 |
| 10 | 95335 |
| 11 | 583373 |
| 12 | 3745903 |
| 13 | 25208633 |
| 14 | 177505205 |
| 15 | 1305468285 |
| 16 | 10009943248 |
| 17 | 79880835800 |
| 18 | 662319435622 |
| 19 | 5696570446421 |
| 20 | 50749156111271 |
| 21 | 467630493212126 |
| 22 | 4451067568592918 |
| 23 | 43709810099960739 |
| 24 | 442331477265626019 |
[0,0,0,0,2,17,101,545,2935,16351,95335,583373, 3745903,25208633,177505205,1305468285,10009943248, 79880835800,662319435622,5696570446421, 50749156111271,467630493212126,4451067568592918, 43709810099960739,442331477265626019] |