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A065870 as a simple table

na(n)
1-2
2-3
3-4
4-3
5-3
6-2
7-4
8-3
9-2
103
11-2
123
136
145
158
167
1710
1810
1912
2014
2115
2217
2318
2420
2523
2624
2721
2822
2923
3026
3136
3238
3343
3444
3543
3640
3742
3845
3948
4052
4157
4258
4362
4460
4563
4658
4769
4880
4982
5083
5178
5281
5382
5490
5591
5694
5792
5893
5994
6096
6196
6299
63106
64109
65110
66112
67125
68128
69134
70135
71138
72142
73149
74154
75158
76157
77154
78160
79154
80160

[-2,-3,-4,-3,-3,-2,-4,-3,-2,3,-2,3,6,5,8,7,10,10,
 12,14,15,17,18,20,23,24,21,22,23,26,36,38,43,44,
 43,40,42,45,48,52,57,58,62,60,63,58,69,80,82,83,
 78,81,82,90,91,94,92,93,94,96,96,99,106,109,110,
 112,125,128,134,135,138,142,149,154,158,157,154,
 160,154,160]