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A098903 as a simple table

na(n)
13
25
37
49
511
613
717
819
923
1025
1127
1229
1331
1437
1541
1643
1747
1849
1953
2059
2161
2267
2371
2473
2579
2681
2783
2889
2997
30101
31103
32105
33107
34109
35113
36121
37125
38127
39131
40137
41139
42149
43151
44157
45163
46165
47167
48169
49173
50179
51181
52191
53193
54195
55197
56199
57211
58223
59227
60229

[3,5,7,9,11,13,17,19,23,25,27,29,31,37,41,43,47,
 49,53,59,61,67,71,73,79,81,83,89,97,101,103,105,
 107,109,113,121,125,127,131,137,139,149,151,157,
 163,165,167,169,173,179,181,191,193,195,197,199,
 211,223,227,229]