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A182140 as a simple table

na(n)
12
23
35
47
511
613
715
817
919
1023
1129
1231
1337
1441
1543
1647
1753
1859
1961
2067
2171
2273
2379
2483
2589
2697
27101
28103
29107
30109
31113
32127
33131
34137
35139
36143
37149
38151
39157
40163
41167
42173
43179
44181
45191
46193
47197
48199
49211
50223
51227
52229
53233
54239
55241
56251
57255
58257

[2,3,5,7,11,13,15,17,19,23,29,31,37,41,43,47,53,
 59,61,67,71,73,79,83,89,97,101,103,107,109,113,
 127,131,137,139,143,149,151,157,163,167,173,179,
 181,191,193,197,199,211,223,227,229,233,239,241,
 251,255,257]