n | a(n) |
---|---|
1 | 18 |
2 | 46 |
3 | 106 |
4 | 238 |
5 | 518 |
6 | 1106 |
7 | 2326 |
8 | 4838 |
9 | 9978 |
10 | 20446 |
11 | 41686 |
12 | 84658 |
13 | 171398 |
14 | 346166 |
15 | 697786 |
16 | 1404398 |
17 | 2823078 |
18 | 5669266 |
19 | 11375926 |
20 | 22812358 |
21 | 45722618 |
22 | 91603646 |
23 | 183463606 |
24 | 367341938 |
25 | 735354918 |
26 | 1471795606 |
27 | 2945348026 |
28 | 5893538638 |
[18,46,106,238,518,1106,2326,4838,9978,20446, 41686,84658,171398,346166,697786,1404398,2823078, 5669266,11375926,22812358,45722618,91603646, 183463606,367341938,735354918,1471795606, 2945348026,5893538638] |