n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 27 |
5 | 91 |
6 | 423 |
7 | 1807 |
8 | 9747 |
9 | 49651 |
10 | 303183 |
11 | 1777447 |
12 | 12072987 |
13 | 79587691 |
14 | 593485623 |
15 | 4327497727 |
16 | 35069154147 |
17 | 279393234211 |
18 | 2440577314143 |
19 | 21043100301847 |
20 | 196825339400427 |
21 | 1822706292362011 |
22 | 18153886768953543 |
[1,1,3,7,27,91,423,1807,9747,49651,303183,1777447, 12072987,79587691,593485623,4327497727, 35069154147,279393234211,2440577314143, 21043100301847,196825339400427,1822706292362011, 18153886768953543] |