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A097605 as a simple table

na(n)
11
22
33
45
57
611
713
815
917
1019
1123
1229
1331
1435
1537
1641
1743
1847
1953
2059
2161
2265
2367
2471
2573
2679
2783
2889
2991
3097
31101
32103
33107
34109
35113
36127
37131
38137
39139
40149
41151
42157
43163
44167
45173
46179
47181
48191
49193
50197
51199
52211
53223
54227
55229
56233
57239
58241
59251
60255
61257

[1,2,3,5,7,11,13,15,17,19,23,29,31,35,37,41,43,47,
 53,59,61,65,67,71,73,79,83,89,91,97,101,103,107,
 109,113,127,131,137,139,149,151,157,163,167,173,
 179,181,191,193,197,199,211,223,227,229,233,239,
 241,251,255,257]