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n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 42 |
5 | 213 |
6 | 1283 |
7 | 8989 |
8 | 71925 |
9 | 647346 |
10 | 6473494 |
11 | 71208489 |
12 | 854501957 |
13 | 11108525585 |
14 | 155519358423 |
15 | 2332790376722 |
16 | 37324646028162 |
17 | 634518982479741 |
18 | 11421341684636935 |
19 | 217005492008104349 |
20 | 4340109840162091161 |
21 | 91142306643403921146 |
22 | 2005130746154886276158 |
[1,1,3,10,42,213,1283,8989,71925,647346,6473494, 71208489,854501957,11108525585,155519358423, 2332790376722,37324646028162,634518982479741, 11421341684636935,217005492008104349, 4340109840162091161,91142306643403921146, 2005130746154886276158] |