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A034021 as a simple table

na(n)
10
21
33
47
513
619
721
831
937
1039
1143
1257
1361
1467
1573
1679
1791
1893
1997
20103
21109
22111
23127
24129
25133
26139
27151
28157
29163
30181
31183
32193
33199
34201
35211
36217
37219
38223
39229
40237
41241
42247
43259
44271
45273
46277
47283
48291
49301
50307
51309
52313
53327
54331
55337
56349
57367

[0,1,3,7,13,19,21,31,37,39,43,57,61,67,73,79,91,
 93,97,103,109,111,127,129,133,139,151,157,163,181,
 183,193,199,201,211,217,219,223,229,237,241,247,
 259,271,273,277,283,291,301,307,309,313,327,331,
 337,349,367]