n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 0 |
4 | 1 |
5 | 20 |
6 | 0 |
7 | 1 |
8 | 168 |
9 | 1680 |
10 | 0 |
11 | 1 |
12 | 1364 |
13 | 55440 |
14 | 369600 |
15 | 0 |
16 | 1 |
17 | 10920 |
18 | 1561560 |
19 | 33633600 |
20 | 168168000 |
21 | 0 |
22 | 1 |
23 | 87380 |
24 | 42771456 |
25 | 2385102720 |
26 | 34306272000 |
27 | 137225088000 |
28 | 0 |
29 | 1 |
30 | 699048 |
31 | 1160164320 |
32 | 158411809920 |
33 | 5105916816000 |
34 | 54752810112000 |
35 | 182509367040000 |
[1,0,1,0,1,20,0,1,168,1680,0,1,1364,55440,369600, 0,1,10920,1561560,33633600,168168000,0,1,87380, 42771456,2385102720,34306272000,137225088000,0,1, 699048,1160164320,158411809920,5105916816000, 54752810112000,182509367040000] |