n | a(n) |
---|---|
1 | 1 |
2 | 40 |
3 | 1200 |
4 | 32000 |
5 | 800000 |
6 | 19200000 |
7 | 448000000 |
8 | 10240000000 |
9 | 230400000000 |
10 | 5120000000000 |
11 | 112640000000000 |
12 | 2457600000000000 |
13 | 53248000000000000 |
14 | 1146880000000000000 |
15 | 24576000000000000000 |
16 | 524288000000000000000 |
17 | 11141120000000000000000 |
18 | 235929600000000000000000 |
[1,40,1200,32000,800000,19200000,448000000, 10240000000,230400000000,5120000000000, 112640000000000,2457600000000000, 53248000000000000,1146880000000000000, 24576000000000000000,524288000000000000000, 11141120000000000000000,235929600000000000000000] |