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A249876 as a simple table

na(n)
11
23
35
47
511
613
717
821
923
1025
1131
1235
1341
1443
1545
1647
1755
1857
1963
2065
2173
2275
2383
2487
2595
2697
27101
28105
29107
30113
31123
32127
33131
34133
35141
36143
37147
38151
39153
40161
41175
42177
43183
44185
45197
46201
47211
48213
49215
50217
51227
52233
53235
54237
55251
56255
57265
58267

[1,3,5,7,11,13,17,21,23,25,31,35,41,43,45,47,55,
 57,63,65,73,75,83,87,95,97,101,105,107,113,123,
 127,131,133,141,143,147,151,153,161,175,177,183,
 185,197,201,211,213,215,217,227,233,235,237,251,
 255,265,267]