n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 3 |
3 | -9 |
4 | 37 |
5 | -185 |
6 | 1111 |
7 | -7777 |
8 | 62217 |
9 | -559953 |
10 | 5599531 |
11 | -61594841 |
12 | 739138093 |
13 | -9608795209 |
14 | 134523132927 |
15 | -2017846993905 |
16 | 32285551902481 |
17 | -548854382342177 |
18 | 9879378882159187 |
19 | -187708198761024553 |
20 | 3754163975220491061 |
[1,-1,3,-9,37,-185,1111,-7777,62217,-559953, 5599531,-61594841,739138093,-9608795209, 134523132927,-2017846993905,32285551902481, -548854382342177,9879378882159187, -187708198761024553,3754163975220491061] |