Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 3 |
4 | 6 |
5 | 10 |
6 | 105 |
7 | 651 |
8 | 2968 |
9 | 18936 |
10 | 152505 |
11 | 1164295 |
12 | 9109056 |
13 | 80012868 |
14 | 756041377 |
15 | 7387199925 |
16 | 75535791360 |
17 | 816560002576 |
18 | 9254683835073 |
19 | 109135702334619 |
20 | 1338613513677280 |
21 | 17079079303721820 |
22 | 226148006163689841 |
23 | 3100114305453613393 |
24 | 43935964285680790368 |
[1,0,0,3,6,10,105,651,2968,18936,152505,1164295, 9109056,80012868,756041377,7387199925,75535791360, 816560002576,9254683835073,109135702334619, 1338613513677280,17079079303721820, 226148006163689841,3100114305453613393, 43935964285680790368] |