n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 27 |
5 | 127 |
6 | 747 |
7 | 5167 |
8 | 41067 |
9 | 368047 |
10 | 3669867 |
11 | 40284847 |
12 | 482671467 |
13 | 6267305647 |
14 | 87660962667 |
15 | 1313941673647 |
16 | 21010450850667 |
17 | 357001369769647 |
18 | 6423384156578667 |
19 | 122002101778601647 |
20 | 2439325392333218667 |
[1,1,3,7,27,127,747,5167,41067,368047,3669867, 40284847,482671467,6267305647,87660962667, 1313941673647,21010450850667,357001369769647, 6423384156578667,122002101778601647, 2439325392333218667] |