n | a(n) |
---|---|
2 | 1 |
3 | 6 |
4 | 29 |
5 | 131 |
6 | 575 |
7 | 2488 |
8 | 10681 |
9 | 45641 |
10 | 194467 |
11 | 827045 |
12 | 3512983 |
13 | 14909339 |
14 | 63239487 |
15 | 268127302 |
16 | 1136495965 |
17 | 4816202207 |
18 | 20406887583 |
19 | 86457399359 |
20 | 366263778659 |
21 | 1551535465465 |
22 | 6572224024539 |
23 | 27838835937511 |
24 | 117918419518219 |
[1,6,29,131,575,2488,10681,45641,194467,827045, 3512983,14909339,63239487,268127302,1136495965, 4816202207,20406887583,86457399359,366263778659, 1551535465465,6572224024539,27838835937511, 117918419518219] |