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 | 4 |
4 | 4 |
5 | 0 |
6 | 10 |
7 | 40 |
8 | 10 |
9 | 20 |
10 | 180 |
11 | 180 |
12 | 55 |
13 | 560 |
14 | 1260 |
15 | 616 |
16 | 1435 |
17 | 5600 |
18 | 5684 |
19 | 4424 |
20 | 18956 |
21 | 33720 |
22 | 24780 |
23 | 55944 |
24 | 147249 |
25 | 157560 |
26 | 182280 |
27 | 523540 |
28 | 826440 |
29 | 802560 |
30 | 1681966 |
31 | 3531880 |
32 | 4072035 |
33 | 5671084 |
34 | 12941764 |
35 | 19281064 |
36 | 22523175 |
37 | 43823520 |
38 | 80254746 |
39 | 99744776 |
[1,0,0,4,4,0,10,40,10,20,180,180,55,560,1260,616, 1435,5600,5684,4424,18956,33720,24780,55944, 147249,157560,182280,523540,826440,802560,1681966, 3531880,4072035,5671084,12941764,19281064, 22523175,43823520,80254746,99744776] |