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A074660 as a simple table

na(n)
01
10
21
3-1
42
50
6-2
73
82
9-4
103
112
12-6
139
143
15-13
166
1712
18-14
1912
20-1
21-13
2214
239
24-14
258
264
27-8
286
2916
30-37
3135
3210
33-25
3419
3510
36-45
3734
3830
39-27
40-8
4135
42-37
4336
448
45-37
4621
4737
48-51
4953
501
51-56
5241
5368
54-79
5513
5629
57-23
5816
5987
60-98
6140
6238
63-70
6443
6553
66-81
6781
6835
69-61
70-28
71140
72-132
7387
7480
75-118
765

[1,0,1,-1,2,0,-2,3,2,-4,3,2,-6,9,3,-13,6,12,-14,
 12,-1,-13,14,9,-14,8,4,-8,6,16,-37,35,10,-25,19,
 10,-45,34,30,-27,-8,35,-37,36,8,-37,21,37,-51,53,
 1,-56,41,68,-79,13,29,-23,16,87,-98,40,38,-70,43,
 53,-81,81,35,-61,-28,140,-132,87,80,-118,5]