n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 12 |
6 | 34 |
7 | 94 |
8 | 282 |
9 | 852 |
10 | 2664 |
11 | 8430 |
12 | 27192 |
13 | 88595 |
14 | 292038 |
15 | 970578 |
16 | 3251294 |
17 | 10961275 |
18 | 37171767 |
19 | 126693635 |
20 | 433789625 |
21 | 1491293824 |
22 | 5145686920 |
23 | 17814165387 |
24 | 61859118648 |
25 | 215399458550 |
26 | 751953130077 |
[1,1,2,5,12,34,94,282,852,2664,8430,27192,88595, 292038,970578,3251294,10961275,37171767,126693635, 433789625,1491293824,5145686920,17814165387, 61859118648,215399458550,751953130077] |