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n | a(n) |
---|---|
0 | 1 |
1 | 45 |
2 | 1980 |
3 | 87120 |
4 | 3832290 |
5 | 168577200 |
6 | 7415481150 |
7 | 326196882000 |
8 | 14348955088710 |
9 | 631190926398780 |
10 | 27765226324720170 |
11 | 1221354364616557380 |
12 | 53725709508796162530 |
13 | 2363320544672336677560 |
14 | 103959241263364038810390 |
[1,45,1980,87120,3832290,168577200,7415481150, 326196882000,14348955088710,631190926398780, 27765226324720170,1221354364616557380, 53725709508796162530,2363320544672336677560, 103959241263364038810390] |