n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | -8 |
4 | 15 |
5 | 126 |
6 | -280 |
7 | -2400 |
8 | 5775 |
9 | 50050 |
10 | -126126 |
11 | -1100736 |
12 | 2858856 |
13 | 25069968 |
14 | -66512160 |
15 | -585307008 |
16 | 1577585295 |
17 | 13919870250 |
18 | -37978905250 |
19 | -335813478000 |
20 | 925166131890 |
21 | 8194328596740 |
22 | -22754499243840 |
23 | -201822515032320 |
24 | 564121960420200 |
25 | 5009403008531376 |
[0,1,-1,-8,15,126,-280,-2400,5775,50050,-126126, -1100736,2858856,25069968,-66512160,-585307008, 1577585295,13919870250,-37978905250,-335813478000, 925166131890,8194328596740,-22754499243840, -201822515032320,564121960420200,5009403008531376] |