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A137830 as a simple table

na(n)
01
1-2
20
30
44
5-4
60
70
89
9-12
100
110
1220
13-24
140
150
1642
17-50
180
190
2080
21-92
220
230
24147
25-172
260
270
28260
29-296
300
310
32445
33-510
340
350
36744
37-840
380
390
401215
41-1372
420
430
441944
45-2176
460
470
483059
49-3424
500
510
524740
53-5268
540
550
567239
57-8040
580
590
6010920

[1,-2,0,0,4,-4,0,0,9,-12,0,0,20,-24,0,0,42,-50,0,
 0,80,-92,0,0,147,-172,0,0,260,-296,0,0,445,-510,0,
 0,744,-840,0,0,1215,-1372,0,0,1944,-2176,0,0,3059,
 -3424,0,0,4740,-5268,0,0,7239,-8040,0,0,10920]