n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 42 |
4 | 909 |
5 | 33969 |
6 | 1948514 |
7 | 158770640 |
8 | 17419561466 |
9 | 2474812055850 |
10 | 441910422152592 |
11 | 96867456432497772 |
12 | 25572186966552515130 |
13 | 8002470602289313981938 |
14 | 2929213328377453597523820 |
15 | 1239933908245021946285387592 |
16 | 601020049737946926794959094457 |
[1,1,4,42,909,33969,1948514,158770640,17419561466, 2474812055850,441910422152592,96867456432497772, 25572186966552515130,8002470602289313981938, 2929213328377453597523820, 1239933908245021946285387592, 601020049737946926794959094457] |