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A146560 as a simple table

na(n)
121
257
365
469
577
6129
7177
8209
9221
10237
11309
12329
13365
14381
15417
16437
17497
18501
19545
20597
21681
22689
23717
24785
25905
26965
271037
281101
291121
301257
311317
321397
331437
341497
351509
361541
371569
381577
391661
401757
411821
421829
431865
441929
451977
461985
472201
482369
492577
502589
512669
522705
532885
542901

[21,57,65,69,77,129,177,209,221,237,309,329,365,
 381,417,437,497,501,545,597,681,689,717,785,905,
 965,1037,1101,1121,1257,1317,1397,1437,1497,1509,
 1541,1569,1577,1661,1757,1821,1829,1865,1929,1977,
 1985,2201,2369,2577,2589,2669,2705,2885,2901]