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A120743 as a simple table

na(n)
11
2-8
3-26
428
5316
6352
7-2456
8-8432
97696
1099712
11122464
12-752192
13-2729024
142063872
1531417984
1642197248
17-229785344
18-881543168
19534767104
209884965888
2114422260736
22-70005137408
23-284232882176
24131585609728
253105500041216

[1,-8,-26,28,316,352,-2456,-8432,7696,99712,
 122464,-752192,-2729024,2063872,31417984,42197248,
 -229785344,-881543168,534767104,9884965888,
 14422260736,-70005137408,-284232882176,
 131585609728,3105500041216]