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A155815 as a simple table

na(n)
123
297
3269
4587
51123
61973
73257
85119
97727
1011273
1115973
1222067
1329819
1451473
15104369
16191123
17229637
18687787
19897473
201018807
211152119
221631723
232026069
242488223
252747023
263025577
273989723
285614247
297125947
307692019
318291237

[23,97,269,587,1123,1973,3257,5119,7727,11273,
 15973,22067,29819,51473,104369,191123,229637,
 687787,897473,1018807,1152119,1631723,2026069,
 2488223,2747023,3025577,3989723,5614247,7125947,
 7692019,8291237]