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A164272 as a simple table

na(n)
01
12
20
3-2
4-2
50
60
7-4
80
92
100
110
12-2
134
140
150
166
170
180
19-4
200
214
220
230
240
252
260
27-2
28-4
290
300
31-4
320
330
340
350
36-2
374
380
39-4
400
410
420
43-4
440
450
460
470
486
496
500
510
52-4
530
540
550
560
574
580
590
600
614
620
63-4
646
650
660
67-4
680
690
700
710
720
734
740
75-2
76-4
770
780
79-4
800
812
820
830
84-4
850
860
870
880
890
900
91-8
920
934
940
950
960
974
980
990
100-2
1010
1020
103-4
1040

[1,2,0,-2,-2,0,0,-4,0,2,0,0,-2,4,0,0,6,0,0,-4,0,4,
 0,0,0,2,0,-2,-4,0,0,-4,0,0,0,0,-2,4,0,-4,0,0,0,-4,
 0,0,0,0,6,6,0,0,-4,0,0,0,0,4,0,0,0,4,0,-4,6,0,0,
 -4,0,0,0,0,0,4,0,-2,-4,0,0,-4,0,2,0,0,-4,0,0,0,0,
 0,0,-8,0,4,0,0,0,4,0,0,-2,0,0,-4,0]