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A181848 as a simple table

na(n)
13
25
313
459
5103
6113
7223
8241
9269
10337
11491
12773
13787
14823
15911
16919
171571
181637
191723
201879
211949
222089
232423
242521
252753
262953
272971
282999
293011
303137
313361
323571
333739
344231
354363
364663
374909
385791
395903
406221
416359
426793
437043
447507
457873
469323
479403

[3,5,13,59,103,113,223,241,269,337,491,773,787,
 823,911,919,1571,1637,1723,1879,1949,2089,2423,
 2521,2753,2953,2971,2999,3011,3137,3361,3571,3739,
 4231,4363,4663,4909,5791,5903,6221,6359,6793,7043,
 7507,7873,9323,9403]