n | a(n) |
---|---|
1 | 2 |
2 | 3 |
3 | 8 |
4 | 20 |
5 | 50 |
6 | 126 |
7 | 329 |
8 | 956 |
9 | 2897 |
10 | 8341 |
11 | 23238 |
12 | 66544 |
13 | 194686 |
14 | 555838 |
15 | 1532445 |
16 | 4225095 |
17 | 12140873 |
18 | 36623429 |
19 | 112964359 |
20 | 345148105 |
21 | 1027400959 |
22 | 2988415841 |
23 | 8604041257 |
24 | 24715209608 |
25 | 70743541258 |
26 | 201532200098 |
27 | 575286723544 |
[2,3,8,20,50,126,329,956,2897,8341,23238,66544, 194686,555838,1532445,4225095,12140873,36623429, 112964359,345148105,1027400959,2988415841, 8604041257,24715209608,70743541258,201532200098, 575286723544] |