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A066720 as a simple table

na(n)
11
22
33
45
57
68
711
813
917
1018
1119
1223
1329
1431
1537
1641
1743
1847
1950
2053
2159
2260
2361
2467
2571
2673
2779
2881
2983
3089
3197
3298
33101
34103
35105
36107
37109
38113
39127
40128
41131
42137
43139
44149
45151
46157
47163
48167
49173
50179
51181
52191
53193
54197
55199
56211
57223
58227
59229
60233
61239

[1,2,3,5,7,8,11,13,17,18,19,23,29,31,37,41,43,47,
 50,53,59,60,61,67,71,73,79,81,83,89,97,98,101,103,
 105,107,109,113,127,128,131,137,139,149,151,157,
 163,167,173,179,181,191,193,197,199,211,223,227,
 229,233,239]