n | a(n) |
---|---|
1 | 2 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 6 |
6 | 10 |
7 | 22 |
8 | 42 |
9 | 94 |
10 | 203 |
11 | 470 |
12 | 1082 |
13 | 2602 |
14 | 6270 |
15 | 15482 |
16 | 38525 |
17 | 97258 |
18 | 247448 |
19 | 635910 |
20 | 1645411 |
21 | 4289010 |
22 | 11245670 |
23 | 29656148 |
24 | 78595028 |
25 | 209273780 |
26 | 559574414 |
27 | 1502130920 |
28 | 4046853091 |
29 | 10939133170 |
30 | 29661655793 |
[2,1,2,3,6,10,22,42,94,203,470,1082,2602,6270, 15482,38525,97258,247448,635910,1645411,4289010, 11245670,29656148,78595028,209273780,559574414, 1502130920,4046853091,10939133170,29661655793] |