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n | a(n) |
---|---|
0 | 2 |
1 | 21 |
2 | 199 |
3 | 1899 |
4 | 21021 |
5 | 199021 |
6 | 1918099 |
7 | 20910799 |
8 | 200019821 |
9 | 1900122121 |
10 | 20891019999 |
11 | 202218797999 |
12 | 1890099997921 |
13 | 20980788999221 |
14 | 200121978010199 |
15 | 1890100100100899 |
16 | 21201121221021021 |
17 | 198920011010098021 |
[2,21,199,1899,21021,199021,1918099,20910799, 200019821,1900122121,20891019999,202218797999, 1890099997921,20980788999221,200121978010199, 1890100100100899,21201121221021021, 198920011010098021] |