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A188130 as a simple table

na(n)
15
237
373
4233
5397
6461
7557
8577
9601
10761
111013
121321
131361
141381
151453
161693
171777
181993
192417
202593
212621
222897
233037
243181
253457
263581
273593
284001
294273
304441
314517
324597
334801
344813
354861
364933
375197
385393
395557
405717
415801
426173
436277
446353
456373
466841
476977
487573
497853
507901
518353
528377
539613
5410321
5510357

[5,37,73,233,397,461,557,577,601,761,1013,1321,
 1361,1381,1453,1693,1777,1993,2417,2593,2621,2897,
 3037,3181,3457,3581,3593,4001,4273,4441,4517,4597,
 4801,4813,4861,4933,5197,5393,5557,5717,5801,6173,
 6277,6353,6373,6841,6977,7573,7853,7901,8353,8377,
 9613,10321,10357]