n | a(n) |
---|---|
1 | 47 |
2 | 203 |
3 | 851 |
4 | 3551 |
5 | 14747 |
6 | 61279 |
7 | 255139 |
8 | 1066031 |
9 | 4472467 |
10 | 18846943 |
11 | 79770595 |
12 | 339053711 |
13 | 1446716915 |
14 | 6194800095 |
15 | 26609084003 |
16 | 114610153487 |
17 | 494820389939 |
18 | 2140706570911 |
19 | 9277278747747 |
20 | 40264500902671 |
21 | 174969241485427 |
[47,203,851,3551,14747,61279,255139,1066031, 4472467,18846943,79770595,339053711,1446716915, 6194800095,26609084003,114610153487,494820389939, 2140706570911,9277278747747,40264500902671, 174969241485427] |