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n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 12 |
4 | 58 |
5 | 321 |
6 | 1963 |
7 | 13053 |
8 | 92946 |
9 | 702864 |
10 | 5599204 |
11 | 46746501 |
12 | 407019340 |
13 | 3682922657 |
14 | 34519445611 |
15 | 334288656446 |
16 | 3336972646500 |
17 | 34270606413428 |
18 | 361466138304372 |
19 | 3909661505975148 |
20 | 43305438098350844 |
21 | 490632571238216052 |
[1,1,3,12,58,321,1963,13053,92946,702864,5599204, 46746501,407019340,3682922657,34519445611, 334288656446,3336972646500,34270606413428, 361466138304372,3909661505975148, 43305438098350844,490632571238216052] |