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n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 14 |
4 | 81 |
5 | 527 |
6 | 3684 |
7 | 27022 |
8 | 205149 |
9 | 1598303 |
10 | 12705939 |
11 | 102653652 |
12 | 840419676 |
13 | 6956988612 |
14 | 58132229976 |
15 | 489673597926 |
16 | 4153635860373 |
17 | 35449185841679 |
18 | 304179698619129 |
19 | 2622657870000646 |
20 | 22710277017073785 |
21 | 197418128701387895 |
[1,3,14,81,527,3684,27022,205149,1598303,12705939, 102653652,840419676,6956988612,58132229976, 489673597926,4153635860373,35449185841679, 304179698619129,2622657870000646, 22710277017073785,197418128701387895] |