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n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 5 |
4 | 17 |
5 | 129 |
6 | 769 |
7 | 7797 |
8 | 66849 |
9 | 848481 |
10 | 9506241 |
11 | 145041093 |
12 | 2007271089 |
13 | 35799178401 |
14 | 589807203777 |
15 | 12045448529397 |
16 | 230194642564161 |
17 | 5298881528389185 |
18 | 115219444193968257 |
19 | 2952169020073027845 |
[1,1,1,5,17,129,769,7797,66849,848481,9506241, 145041093,2007271089,35799178401,589807203777, 12045448529397,230194642564161,5298881528389185, 115219444193968257,2952169020073027845] |