n | a(n) |
---|---|
0 | 1 |
1 | -3 |
2 | 7 |
3 | -19 |
4 | 51 |
5 | -135 |
6 | 359 |
7 | -955 |
8 | 2539 |
9 | -6751 |
10 | 17951 |
11 | -47731 |
12 | 126915 |
13 | -337463 |
14 | 897303 |
15 | -2385899 |
16 | 6344027 |
17 | -16868559 |
18 | 44852943 |
19 | -119262499 |
20 | 317115059 |
21 | -843198503 |
22 | 2242037063 |
23 | -5961502747 |
24 | 15851439563 |
25 | -42148455999 |
26 | 112071357055 |
27 | -297994049235 |
28 | 792356367523 |
29 | -2106849498391 |
[1,-3,7,-19,51,-135,359,-955,2539,-6751,17951, -47731,126915,-337463,897303,-2385899,6344027, -16868559,44852943,-119262499,317115059, -843198503,2242037063,-5961502747,15851439563, -42148455999,112071357055,-297994049235, 792356367523,-2106849498391] |