login

A012286 as a simple table

na(n)
00
10
22
3-3
44
5-20
6-130
71869
8-12280
9100080
10-604742
11-829675
1262508620
13-1158921972
1417643171702
15-190494456075
161197368304912
178324510449216
18-571700218304142
1914677422922560141
20-268070215275170156
213735756713394119820
22-25728057443748879250

[0,0,2,-3,4,-20,-130,1869,-12280,100080,-604742,
 -829675,62508620,-1158921972,17643171702,
 -190494456075,1197368304912,8324510449216,
 -571700218304142,14677422922560141,
 -268070215275170156,3735756713394119820,
 -25728057443748879250]