n | a(n) |
---|---|
0 | 0 |
1 | 5 |
2 | 20 |
3 | 75 |
4 | 300 |
5 | 1200 |
6 | 4780 |
7 | 19045 |
8 | 75900 |
9 | 302475 |
10 | 1205400 |
11 | 4803680 |
12 | 19143320 |
13 | 76288725 |
14 | 304020900 |
15 | 1211564475 |
16 | 4828248580 |
17 | 19241224720 |
18 | 76678887300 |
19 | 305575754325 |
20 | 1217760780300 |
21 | 4852941691355 |
22 | 19339630115120 |
23 | 77071046136000 |
24 | 307138560414000 |
[0,5,20,75,300,1200,4780,19045,75900,302475, 1205400,4803680,19143320,76288725,304020900, 1211564475,4828248580,19241224720,76678887300, 305575754325,1217760780300,4852941691355, 19339630115120,77071046136000,307138560414000] |