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A139137 as a simple table

na(n)
01
12
20
3-2
4-2
50
64
74
80
9-6
10-8
110
1210
1312
140
15-16
16-18
170
1824
1928
200
21-36
22-40
230
2452
2558
260
27-74
28-84
290
30104
31116
320
33-144
34-160
350
36198
37220
380
39-268
40-296
410
42360
43396
440
45-480
46-528
470
48634
49694
500
51-832
52-908
530
541084
551184
560
57-1404
58-1528
590
601808
611964
620
63-2316
64-2514
650
662952
673196

[1,2,0,-2,-2,0,4,4,0,-6,-8,0,10,12,0,-16,-18,0,24,
 28,0,-36,-40,0,52,58,0,-74,-84,0,104,116,0,-144,
 -160,0,198,220,0,-268,-296,0,360,396,0,-480,-528,
 0,634,694,0,-832,-908,0,1084,1184,0,-1404,-1528,0,
 1808,1964,0,-2316,-2514,0,2952,3196]