n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 3 |
4 | 6 |
5 | 10 |
6 | 22 |
7 | 46 |
8 | 112 |
9 | 272 |
10 | 720 |
11 | 1906 |
12 | 5240 |
13 | 14475 |
14 | 40641 |
15 | 114624 |
16 | 325921 |
17 | 930028 |
18 | 2666356 |
19 | 7666949 |
20 | 22115933 |
21 | 63951671 |
22 | 185370931 |
23 | 538416222 |
24 | 1566868939 |
25 | 4567669566 |
26 | 13336886288 |
27 | 38998848186 |
28 | 114194014853 |
[1,2,3,6,10,22,46,112,272,720,1906,5240,14475, 40641,114624,325921,930028,2666356,7666949, 22115933,63951671,185370931,538416222,1566868939, 4567669566,13336886288,38998848186,114194014853] |