n | a(n) |
---|---|
1 | 8 |
2 | 42 |
3 | 208 |
4 | 1242 |
5 | 6856 |
6 | 43068 |
7 | 245860 |
8 | 1589346 |
9 | 9213728 |
10 | 60568000 |
11 | 354452340 |
12 | 2354520904 |
13 | 13870730416 |
14 | 92791873776 |
15 | 549357227852 |
16 | 3693928360378 |
17 | 21952690573088 |
18 | 148190103229340 |
19 | 883335481978896 |
20 | 5981390826179620 |
[8,42,208,1242,6856,43068,245860,1589346,9213728, 60568000,354452340,2354520904,13870730416, 92791873776,549357227852,3693928360378, 21952690573088,148190103229340,883335481978896, 5981390826179620] |