n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 22 |
4 | 84 |
5 | 336 |
6 | 1392 |
7 | 5912 |
8 | 25580 |
9 | 112324 |
10 | 499312 |
11 | 2242188 |
12 | 10154664 |
13 | 46324964 |
14 | 212664488 |
15 | 981653620 |
16 | 4553218968 |
17 | 21209894268 |
18 | 99178882232 |
19 | 465362985740 |
20 | 2190341893320 |
21 | 10338437549876 |
22 | 48922967035664 |
23 | 232055129413436 |
24 | 1103080339515552 |
25 | 5253968486241476 |
26 | 25070738463476960 |
27 | 119836239979700524 |
[1,2,6,22,84,336,1392,5912,25580,112324,499312, 2242188,10154664,46324964,212664488,981653620, 4553218968,21209894268,99178882232,465362985740, 2190341893320,10338437549876,48922967035664, 232055129413436,1103080339515552,5253968486241476, 25070738463476960,119836239979700524] |