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A140826 as a simple table

na(n)
13
24
35
47
511
613
717
818
919
1020
1123
1224
1329
1431
1537
1641
1743
1847
1953
2059
2161
2267
2371
2473
2579
2683
2789
2897
29101
30103
31107
32109
33113
34127
35131
36137
37139
38149
39151
40157
41163
42167
43173
44179
45181
46191
47193
48197
49199
50211
51223
52227
53229
54233
55239
56241
57251
58257
59263
60269

[3,4,5,7,11,13,17,18,19,20,23,24,29,31,37,41,43,
 47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,
 113,127,131,137,139,149,151,157,163,167,173,179,
 181,191,193,197,199,211,223,227,229,233,239,241,
 251,257,263,269]