Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 4 |
4 | 28 |
5 | 270 |
6 | 3185 |
7 | 42830 |
8 | 636250 |
9 | 10765885 |
10 | 227860725 |
11 | 6003043950 |
12 | 152451368175 |
13 | 2205648850800 |
14 | 1614364541325 |
15 | 6690753945813375 |
16 | 787760273195291625 |
17 | -6787610390670062625 |
18 | -7103289749314032719250 |
19 | -59946385622086525694250 |
20 | 117473730537013548978420000 |
[0,1,1,4,28,270,3185,42830,636250,10765885, 227860725,6003043950,152451368175,2205648850800, 1614364541325,6690753945813375,787760273195291625, -6787610390670062625,-7103289749314032719250, -59946385622086525694250, 117473730537013548978420000] |