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A130912 as a simple table

na(n)
21
33
42
55
63
713
83
917
101
116
121
1323
1425
1544
1636
178
1836
1910
202
2156
2219
2348
246
2557
2692
2759
2813
2967
3083
3118
3217
3353
3430
3596
3656
3782
3867
3947
403
4150
42148
4350
44104
45175
46135
47109
48189
49201
5068
517
5226
53142
54247
55225
56128
57260
58109
5970
6074
6158
6278
63294
64175
65120
66175
67139
68153

[1,3,2,5,3,13,3,17,1,6,1,23,25,44,36,8,36,10,2,56,
 19,48,6,57,92,59,13,67,83,18,17,53,30,96,56,82,67,
 47,3,50,148,50,104,175,135,109,189,201,68,7,26,
 142,247,225,128,260,109,70,74,58,78,294,175,120,
 175,139,153]