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A089730 as a simple table

na(n)
10
21
33
45
53
611
77
817
97
1013
1129
1217
1319
1441
1517
1623
1723
1859
1931
2029
2171
2237
2323
2443
2547
2647
27101
2847
29107
3053
3161
3259
3367
34137
3573
36149
3773
3879
3953
4083
4183
42179
4389
44191
4597
46197
47103
48109
49107
50227
51113
52113
53239
54107
55127
56113
57131
58269
59137
60139
61281
62137

[0,1,3,5,3,11,7,17,7,13,29,17,19,41,17,23,23,59,
 31,29,71,37,23,43,47,47,101,47,107,53,61,59,67,
 137,73,149,73,79,53,83,83,179,89,191,97,197,103,
 109,107,227,113,113,239,107,127,113,131,269,137,
 139,281,137]