n | a(n) |
---|---|
0 | 1 |
1 | 20 |
2 | 400 |
3 | 8000 |
4 | 160000 |
5 | 3200000 |
6 | 64000000 |
7 | 1280000000 |
8 | 25600000000 |
9 | 512000000000 |
10 | 10240000000000 |
11 | 204800000000000 |
12 | 4096000000000000 |
13 | 81920000000000000 |
14 | 1638400000000000000 |
15 | 32768000000000000000 |
[1,20,400,8000,160000,3200000,64000000,1280000000, 25600000000,512000000000,10240000000000, 204800000000000,4096000000000000, 81920000000000000,1638400000000000000, 32768000000000000000] |