n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 1 |
4 | -20 |
5 | -159 |
6 | -594 |
7 | 2465 |
8 | 69560 |
9 | 665665 |
10 | 1593850 |
11 | -67177791 |
12 | -1413216540 |
13 | -12990964063 |
14 | 64480265318 |
15 | 4811655319393 |
16 | 90259507840240 |
17 | 540272971703937 |
18 | -20890652777843598 |
19 | -798235260367432831 |
20 | -12766815370452348580 |
[0,1,2,1,-20,-159,-594,2465,69560,665665,1593850, -67177791,-1413216540,-12990964063,64480265318, 4811655319393,90259507840240,540272971703937, -20890652777843598,-798235260367432831, -12766815370452348580] |