n | a(n) |
---|---|
5 | 1 |
6 | 75 |
7 | 1225 |
8 | 15750 |
9 | 152355 |
10 | 1049895 |
11 | 8130925 |
12 | 51541050 |
13 | 305751160 |
14 | 1721589870 |
15 | 10370592050 |
16 | 54481859250 |
17 | 292852136335 |
18 | 1539187989915 |
19 | 8149972381105 |
20 | 43456591157700 |
21 | 220640087499230 |
22 | 1133640238666320 |
23 | 5822084961637780 |
24 | 29811110400741780 |
25 | 154396823960132126 |
[1,75,1225,15750,152355,1049895,8130925,51541050, 305751160,1721589870,10370592050,54481859250, 292852136335,1539187989915,8149972381105, 43456591157700,220640087499230,1133640238666320, 5822084961637780,29811110400741780, 154396823960132126] |