n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 11 |
6 | 32 |
7 | 128 |
8 | 512 |
9 | 1920 |
10 | 6963 |
11 | 24576 |
12 | 87380 |
13 | 317755 |
14 | 1179648 |
15 | 4438966 |
16 | 16777216 |
17 | 63406080 |
18 | 239541344 |
19 | 905969664 |
20 | 3435973836 |
21 | 13076666409 |
22 | 49928994816 |
23 | 191126044672 |
24 | 733007751680 |
25 | 2815436626328 |
26 | 10828603699515 |
27 | 41705086880768 |
28 | 160842843834660 |
[0,1,2,4,11,32,128,512,1920,6963,24576,87380, 317755,1179648,4438966,16777216,63406080, 239541344,905969664,3435973836,13076666409, 49928994816,191126044672,733007751680, 2815436626328,10828603699515,41705086880768, 160842843834660] |