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A190894 as a simple table

na(n)
15
29
311
421
523
645
747
893
995
1099
11101
12201
13203
14209
15219
16221
17233
18465
19467
20933
21935
22939
23941
241881
251883
261889
273777
283779
297557
307559
3115117
3215119
3315131
3430261
3530263
3630315
3730317
3830323
3960645
4060647
41121293
42121295
43121299
44121301
45121401

[5,9,11,21,23,45,47,93,95,99,101,201,203,209,219,
 221,233,465,467,933,935,939,941,1881,1883,1889,
 3777,3779,7557,7559,15117,15119,15131,30261,30263,
 30315,30317,30323,60645,60647,121293,121295,
 121299,121301,121401]