n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 27 |
4 | 117 |
5 | 524 |
6 | 2426 |
7 | 11426 |
8 | 54567 |
9 | 262976 |
10 | 1276549 |
11 | 6229483 |
12 | 30526069 |
13 | 150072090 |
14 | 739706710 |
15 | 3653663305 |
16 | 18077660610 |
17 | 89571457084 |
18 | 444331922248 |
19 | 2206345069415 |
20 | 10964807311084 |
21 | 54530053703043 |
22 | 271352454159710 |
23 | 1351007442499864 |
24 | 6729414090351049 |
25 | 33532553606501833 |
26 | 167149180130979290 |
[1,2,7,27,117,524,2426,11426,54567,262976,1276549, 6229483,30526069,150072090,739706710,3653663305, 18077660610,89571457084,444331922248, 2206345069415,10964807311084,54530053703043, 271352454159710,1351007442499864,6729414090351049, 33532553606501833,167149180130979290] |