n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 41 |
4 | 235 |
5 | 1361 |
6 | 7987 |
7 | 47321 |
8 | 281995 |
9 | 1685921 |
10 | 10096867 |
11 | 60524201 |
12 | 362972155 |
13 | 2177309681 |
14 | 13062280147 |
15 | 78368930681 |
16 | 470199300715 |
17 | 2821152888641 |
18 | 16926788453827 |
19 | 101560343826761 |
20 | 609360901747675 |
21 | 3656161925798801 |
22 | 21936961098633907 |
23 | 131621735219132441 |
[1,7,41,235,1361,7987,47321,281995,1685921, 10096867,60524201,362972155,2177309681, 13062280147,78368930681,470199300715, 2821152888641,16926788453827,101560343826761, 609360901747675,3656161925798801, 21936961098633907,131621735219132441] |