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A104719 as a simple table

na(n)
1313
2717
31323
41929
53141
63747
74353
86171
97383
107989
1197107
12103113
13127137
14139149
15157167
16163173
17181191
18223233
19229239
20241251
21271281
22283293
23307317
24337347
25349359
26373383
27379389
28409419
29421431
30433443
31439449
32457467
33499509

[313,717,1323,1929,3141,3747,4353,6171,7383,7989,
 97107,103113,127137,139149,157167,163173,181191,
 223233,229239,241251,271281,283293,307317,337347,
 349359,373383,379389,409419,421431,433443,439449,
 457467,499509]