n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 40 |
4 | 192 |
5 | 864 |
6 | 3712 |
7 | 15488 |
8 | 63488 |
9 | 257536 |
10 | 1038336 |
11 | 4171776 |
12 | 16728064 |
13 | 67002368 |
14 | 268206080 |
15 | 1073250304 |
16 | 4293918720 |
17 | 17177640960 |
18 | 68714758144 |
19 | 274867945472 |
20 | 1099490656256 |
21 | 4398002470912 |
22 | 17592093769728 |
23 | 70368551239680 |
24 | 281474574057472 |
25 | 1125899067981824 |
[1,2,8,40,192,864,3712,15488,63488,257536,1038336, 4171776,16728064,67002368,268206080,1073250304, 4293918720,17177640960,68714758144,274867945472, 1099490656256,4398002470912,17592093769728, 70368551239680,281474574057472,1125899067981824] |