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A233809 as a simple table

na(n)
12
2-1
3-6
41
512
6-1
7-18
81
924
10-5
11-36
121
1342
14-1
15-48
165
1764
183
19-64
207
2180
221
23-82
247
25104
263
27-100
287
29116
303
31-124
327
33144
345
35-144
367
37164
381
39-166
407
41186
425
43-186
447
45204
465
47-206
4817
49244
5015
51-218
5221
53262
5411
55-246
5617
57286
5815
59-262

[2,-1,-6,1,12,-1,-18,1,24,-5,-36,1,42,-1,-48,5,64,
 3,-64,7,80,1,-82,7,104,3,-100,7,116,3,-124,7,144,
 5,-144,7,164,1,-166,7,186,5,-186,7,204,5,-206,17,
 244,15,-218,21,262,11,-246,17,286,15,-262]