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A152113 as a simple table

na(n)
11
21
33
43
57
67
717
817
941
1041
1199
1299
13239
14239
15577
16577
171393
181393
193363
203363
218119
228119
2319601
2419601
2547321
2647321
27114243
28114243
29275807
30275807
31665857
32665857
331607521
341607521
353880899
363880899
379369319
389369319
3922619537
4022619537
4154608393

[1,1,3,3,7,7,17,17,41,41,99,99,239,239,577,577,
 1393,1393,3363,3363,8119,8119,19601,19601,47321,
 47321,114243,114243,275807,275807,665857,665857,
 1607521,1607521,3880899,3880899,9369319,9369319,
 22619537,22619537,54608393]