n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2888 |
3 | 0 |
4 | 1392016 |
5 | 0 |
6 | 269493720 |
7 | 0 |
8 | 28142347040 |
9 | 0 |
10 | 1846012202088 |
11 | 0 |
12 | 83558656596144 |
13 | 0 |
14 | 2782948528883448 |
15 | 0 |
16 | 71467464065517120 |
17 | 0 |
18 | 1466676453767667080 |
19 | 137438953472 |
20 | 24743400982621475792 |
[1,0,2888,0,1392016,0,269493720,0,28142347040,0, 1846012202088,0,83558656596144,0,2782948528883448, 0,71467464065517120,0,1466676453767667080, 137438953472,24743400982621475792] |