Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 60 |
4 | 0 |
5 | 0 |
6 | 19958400 |
7 | 0 |
8 | 0 |
9 | 622452999168000 |
10 | 0 |
11 | 0 |
12 | 258520167388849766400000 |
13 | 0 |
14 | 0 |
15 | 675289572271869736778268672000000 |
16 | 0 |
17 | 0 |
18 | 7393367369949286697176489031997849600000000 |
19 | 0 |
20 | 0 |
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