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A256791 as a simple table

na(n)
00
11
2-2
3-1
44
5-4
61
72
8-1
99
10-1
114
12-4
131
142
15-1
1616
171
18-2
19-1
204
21-4
221
232
24-1
2525
261
27-9
281
29-2
30-1
314
32-4
331
342
35-1
3636
374
38-4
391
40-9
411
42-2
43-1
444
45-4
461
472
48-1
4949
50-2
51-1
524
53-4
541
55-9
561
57-2
58-1
594
60-4
611
622
63-1
6464
65-16
661
67-2
68-1
694
70-4
711
72-9

[0,1,-2,-1,4,-4,1,2,-1,9,-1,4,-4,1,2,-1,16,1,-2,
 -1,4,-4,1,2,-1,25,1,-9,1,-2,-1,4,-4,1,2,-1,36,4,
 -4,1,-9,1,-2,-1,4,-4,1,2,-1,49,-2,-1,4,-4,1,-9,1,
 -2,-1,4,-4,1,2,-1,64,-16,1,-2,-1,4,-4,1,-9]