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A269913 as a simple table

na(n)
04
1-4
244
3-44
4116
5-116
6220
7-220
8356
9-356
10524
11-524
12724
13-724
14956
15-956
161220
17-1220
181516
19-1516
201844
21-1844
222204
23-2204
242596
25-2596
263020
27-3020
283476
29-3476
303964
31-3964
324484
33-4484
345036
35-5036
365620
37-5620
386236
39-6236
406884
41-6884
427564

[4,-4,44,-44,116,-116,220,-220,356,-356,524,-524,
 724,-724,956,-956,1220,-1220,1516,-1516,1844,
 -1844,2204,-2204,2596,-2596,3020,-3020,3476,-3476,
 3964,-3964,4484,-4484,5036,-5036,5620,-5620,6236,
 -6236,6884,-6884,7564]