n | a(n) |
---|---|
5 | 1 |
6 | 15 |
7 | 175 |
8 | 1960 |
9 | 22449 |
10 | 269325 |
11 | 3416930 |
12 | 45995730 |
13 | 657206836 |
14 | 9957703756 |
15 | 159721605680 |
16 | 2706813345600 |
17 | 48366009233424 |
18 | 909299905844112 |
19 | 17950712280921504 |
20 | 371384787345228000 |
21 | 8037811822645051776 |
22 | 181664979520697076096 |
23 | 4280722865357147142912 |
24 | 105005310755917452984576 |
[1,15,175,1960,22449,269325,3416930,45995730, 657206836,9957703756,159721605680,2706813345600, 48366009233424,909299905844112,17950712280921504, 371384787345228000,8037811822645051776, 181664979520697076096,4280722865357147142912, 105005310755917452984576] |