n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 2 |
4 | 10 |
5 | 14 |
6 | 42 |
7 | 90 |
8 | 354 |
9 | 758 |
10 | 2290 |
11 | 6002 |
12 | 18410 |
13 | 51310 |
14 | 154106 |
15 | 449322 |
16 | 1384962 |
17 | 4089174 |
18 | 12475362 |
19 | 37746786 |
20 | 116037642 |
21 | 355367310 |
22 | 1097869386 |
23 | 3393063162 |
24 | 10546081122 |
25 | 32810171382 |
26 | 102465452754 |
27 | 320522209490 |
28 | 1005428474218 |
[1,2,2,10,14,42,90,354,758,2290,6002,18410,51310, 154106,449322,1384962,4089174,12475362,37746786, 116037642,355367310,1097869386,3393063162, 10546081122,32810171382,102465452754,320522209490, 1005428474218] |