n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 28 |
4 | 117 |
5 | 509 |
6 | 2279 |
7 | 10366 |
8 | 47724 |
9 | 222280 |
10 | 1043551 |
11 | 4929582 |
12 | 23413629 |
13 | 111722678 |
14 | 535090212 |
15 | 2570945247 |
16 | 12388203875 |
17 | 59841383394 |
18 | 289679576866 |
19 | 1404971597312 |
20 | 6826074319176 |
21 | 33215354074742 |
22 | 161846678561509 |
23 | 789618624113747 |
24 | 3856821700125396 |
25 | 18857888173446861 |
26 | 92293743446831249 |
[1,2,7,28,117,509,2279,10366,47724,222280,1043551, 4929582,23413629,111722678,535090212,2570945247, 12388203875,59841383394,289679576866, 1404971597312,6826074319176,33215354074742, 161846678561509,789618624113747,3856821700125396, 18857888173446861,92293743446831249] |