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A173266 as a simple table

na(n)
01
11
2-1
31
4-2
5-1
61
7-2
80
9-1
101
11-2
12-2
130
14-1
151
16-2
172
180
190
20-1
211
22-2
23-4
24-2
250
260
27-1
281
29-2
306
312
320
330
340
35-1
361
37-2
38-10
390
40-2
410
420
430
44-1
451
46-2
4716
48-4
492
500
510
520
530
54-1
551
56-2
57-26
586
590
60-2
610
620
630
640
65-1
661
67-2
6842
69-2
700
712
720
730
740
750
760
77-1

[1,1,-1,1,-2,-1,1,-2,0,-1,1,-2,-2,0,-1,1,-2,2,0,0,
 -1,1,-2,-4,-2,0,0,-1,1,-2,6,2,0,0,0,-1,1,-2,-10,0,
 -2,0,0,0,-1,1,-2,16,-4,2,0,0,0,0,-1,1,-2,-26,6,0,
 -2,0,0,0,0,-1,1,-2,42,-2,0,2,0,0,0,0,0,-1]