n | a(n) |
---|---|
1 | 4 |
2 | 5 |
3 | 11 |
4 | 22 |
5 | 47 |
6 | 102 |
7 | 224 |
8 | 494 |
9 | 1089 |
10 | 2400 |
11 | 5289 |
12 | 11661 |
13 | 25718 |
14 | 56728 |
15 | 125125 |
16 | 275973 |
17 | 608663 |
18 | 1342423 |
19 | 2960792 |
20 | 6530255 |
21 | 14402991 |
22 | 31766847 |
23 | 70063951 |
24 | 154530760 |
25 | 340828154 |
26 | 751720173 |
27 | 1657971361 |
28 | 3656771426 |
29 | 8065263401 |
30 | 17788497730 |
[4,5,11,22,47,102,224,494,1089,2400,5289,11661, 25718,56728,125125,275973,608663,1342423,2960792, 6530255,14402991,31766847,70063951,154530760, 340828154,751720173,1657971361,3656771426, 8065263401,17788497730] |