n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 16 |
4 | 62 |
5 | 264 |
6 | 1172 |
7 | 5342 |
8 | 24905 |
9 | 118410 |
10 | 572167 |
11 | 2801354 |
12 | 13865237 |
13 | 69258500 |
14 | 348698784 |
15 | 1767724720 |
16 | 9015710574 |
17 | 46227736956 |
18 | 238159867070 |
19 | 1232206495528 |
20 | 6399778252336 |
21 | 33354634754364 |
22 | 174390047681360 |
23 | 914414985920664 |
24 | 4807481173042396 |
[1,2,5,16,62,264,1172,5342,24905,118410,572167, 2801354,13865237,69258500,348698784,1767724720, 9015710574,46227736956,238159867070,1232206495528, 6399778252336,33354634754364,174390047681360, 914414985920664,4807481173042396] |