n | a(n) |
---|---|
1 | 2 |
2 | 12 |
3 | 50 |
4 | 188 |
5 | 724 |
6 | 2820 |
7 | 10960 |
8 | 42544 |
9 | 165176 |
10 | 641376 |
11 | 2490416 |
12 | 9669968 |
13 | 37547296 |
14 | 145791744 |
15 | 566092192 |
16 | 2198069056 |
17 | 8534842304 |
18 | 33139784256 |
19 | 128677866752 |
20 | 499640952320 |
21 | 1940046781312 |
22 | 7532972421120 |
23 | 29249641835776 |
24 | 113572903188736 |
[2,12,50,188,724,2820,10960,42544,165176,641376, 2490416,9669968,37547296,145791744,566092192, 2198069056,8534842304,33139784256,128677866752, 499640952320,1940046781312,7532972421120, 29249641835776,113572903188736] |