n | a(n) |
---|---|
1 | 4 |
2 | 60 |
3 | 840 |
4 | 11704 |
5 | 163020 |
6 | 2270580 |
7 | 31625104 |
8 | 440480880 |
9 | 6135107220 |
10 | 85451020204 |
11 | 1190179175640 |
12 | 16577057438760 |
13 | 230888624967004 |
14 | 3215863692099300 |
15 | 44791203064423200 |
16 | 623860979209825504 |
17 | 8689262505873133860 |
18 | 121025814103014048540 |
19 | 1685672134936323545704 |
[4,60,840,11704,163020,2270580,31625104,440480880, 6135107220,85451020204,1190179175640, 16577057438760,230888624967004,3215863692099300, 44791203064423200,623860979209825504, 8689262505873133860,121025814103014048540, 1685672134936323545704] |