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A266989 as a simple table

na(n)
131
243
367
4223
5379
6491
7619
8631
9643
10683
11859
12883
13907
141051
151091
161423
171747
181987
192143
202347
212371
222467
232531
242767
253307
263643
273691
283739
293823
303931
314019
324219
334519
344691
354987
365059
375107
385347
395683
405827
416043

[31,43,67,223,379,491,619,631,643,683,859,883,907,
 1051,1091,1423,1747,1987,2143,2347,2371,2467,2531,
 2767,3307,3643,3691,3739,3823,3931,4019,4219,4519,
 4691,4987,5059,5107,5347,5683,5827,6043]