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A047621 as a simple table

na(n)
13
25
311
413
519
621
727
829
935
1037
1143
1245
1351
1453
1559
1661
1767
1869
1975
2077
2183
2285
2391
2493
2599
26101
27107
28109
29115
30117
31123
32125
33131
34133
35139
36141
37147
38149
39155
40157
41163
42165
43171
44173
45179
46181
47187
48189
49195
50197
51203
52205
53211
54213
55219
56221
57227
58229

[3,5,11,13,19,21,27,29,35,37,43,45,51,53,59,61,67,
 69,75,77,83,85,91,93,99,101,107,109,115,117,123,
 125,131,133,139,141,147,149,155,157,163,165,171,
 173,179,181,187,189,195,197,203,205,211,213,219,
 221,227,229]