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n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 12 |
4 | 58 |
5 | 321 |
6 | 1975 |
7 | 13265 |
8 | 96073 |
9 | 743753 |
10 | 6113769 |
11 | 53086314 |
12 | 484861924 |
13 | 4641853003 |
14 | 46441475253 |
15 | 484327870652 |
16 | 5252981412262 |
17 | 59132909030463 |
18 | 689642443691329 |
19 | 8319172260103292 |
20 | 103645882500123026 |
21 | 1331832693574410475 |
22 | 17629142345935969713 |
[1,1,3,12,58,321,1975,13265,96073,743753,6113769, 53086314,484861924,4641853003,46441475253, 484327870652,5252981412262,59132909030463, 689642443691329,8319172260103292, 103645882500123026,1331832693574410475, 17629142345935969713] |