n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 33 |
4 | 456 |
5 | 9445 |
6 | 272448 |
7 | 10386817 |
8 | 503758720 |
9 | 30202999821 |
10 | 2189000524800 |
11 | 188349613075393 |
12 | 18954958449853440 |
13 | 2203304642871358741 |
14 | 292675996808408743936 |
15 | 44022321302156791898625 |
16 | 7438113993194856900034560 |
17 | 1401876939543892434209075581 |
[1,1,4,33,456,9445,272448,10386817,503758720, 30202999821,2189000524800,188349613075393, 18954958449853440,2203304642871358741, 292675996808408743936,44022321302156791898625, 7438113993194856900034560, 1401876939543892434209075581] |