n | a(n) |
---|---|
0 | 1 |
1 | -6 |
2 | -13 |
3 | -27 |
4 | -50 |
5 | -106 |
6 | -208 |
7 | -412 |
8 | -840 |
9 | -1656 |
10 | -3328 |
11 | -6672 |
12 | -13280 |
13 | -26656 |
14 | -53248 |
15 | -106432 |
16 | -213120 |
17 | -425856 |
18 | -851968 |
19 | -1704192 |
20 | -3407360 |
21 | -6816256 |
22 | -13631488 |
23 | -27261952 |
24 | -54528000 |
25 | -109049856 |
26 | -218103808 |
27 | -436211712 |
28 | -872407040 |
29 | -1744838656 |
[1,-6,-13,-27,-50,-106,-208,-412,-840,-1656,-3328, -6672,-13280,-26656,-53248,-106432,-213120, -425856,-851968,-1704192,-3407360,-6816256, -13631488,-27261952,-54528000,-109049856, -218103808,-436211712,-872407040,-1744838656] |