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A139887 as a simple table

na(n)
12
2107
3113
4137
5233
6347
7443
8617
9683
10827
11947
12953
13977
141163
151187
161283
171523
181667
191787
201913
212003
222027
232153
242297
252417
262633
272657
282753
292843
302963
313137
323203
333257
343347
353467
363593
373803
383833
394337
404523
414547
424643

[2,107,113,137,233,347,443,617,683,827,947,953,
 977,1163,1187,1283,1523,1667,1787,1913,2003,2027,
 2153,2297,2417,2633,2657,2753,2843,2963,3137,3203,
 3257,3347,3467,3593,3803,3833,4337,4523,4547,4643]