login

A165752 as a simple table

na(n)
01
1-4
2-24
3-104
4-424
5-1704
6-6824
7-27304
8-109224
9-436904
10-1747624
11-6990504
12-27962024
13-111848104
14-447392424
15-1789569704
16-7158278824
17-28633115304
18-114532461224
19-458129844904
20-1832519379624
21-7330077518504

[1,-4,-24,-104,-424,-1704,-6824,-27304,-109224,
 -436904,-1747624,-6990504,-27962024,-111848104,
 -447392424,-1789569704,-7158278824,-28633115304,
 -114532461224,-458129844904,-1832519379624,
 -7330077518504]