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A152270 as a simple table

na(n)
00
11
2-3
3-13
415
5-37
623
7-125
8-467
9-2269
10-2269
11-12147
12-66877
13-66877
14-66877
15-66877
16-370963
17-2061725
18-11464371
1917899313
2099555423
2199555423
22-155471765
23-864636987
241350136841
251350136841
26-2108411107
27-2108411107

[0,1,-3,-13,15,-37,23,-125,-467,-2269,-2269,
 -12147,-66877,-66877,-66877,-66877,-370963,
 -2061725,-11464371,17899313,99555423,99555423,
 -155471765,-864636987,1350136841,1350136841,
 -2108411107,-2108411107]