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A062267 as a simple table

na(n)
01
12
22
3-4
4-20
5-8
6184
7464
8-1648
9-10720
108224
11230848
12280768
13-4978816
14-17257600
15104891648
16727511296
17-1901510144
18-28538404352
1911377556480
201107214478336
211759326697472
22-42984354695168
23-163379084079104

[1,2,2,-4,-20,-8,184,464,-1648,-10720,8224,230848,
 280768,-4978816,-17257600,104891648,727511296,
 -1901510144,-28538404352,11377556480,
 1107214478336,1759326697472,-42984354695168,
 -163379084079104]