n | a(n) |
---|---|
1 | 2 |
2 | 4 |
3 | 6 |
4 | 8 |
5 | 30 |
6 | 32 |
7 | 126 |
8 | 128 |
9 | 8190 |
10 | 8192 |
11 | 131070 |
12 | 131072 |
13 | 524286 |
14 | 524288 |
15 | 2147483646 |
16 | 2147483648 |
17 | 2305843009213693950 |
18 | 2305843009213693952 |
19 | 618970019642690137449562110 |
20 | 618970019642690137449562112 |
[2,4,6,8,30,32,126,128,8190,8192,131070,131072, 524286,524288,2147483646,2147483648, 2305843009213693950,2305843009213693952, 618970019642690137449562110, 618970019642690137449562112] |