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A037231 as a simple table

na(n)
12
23
37
423
543
6139
7283
8659
91319
105179
119227
1223159
1355399
14148439
15366683
16793439
171953839
184875119
199750239
2027353747
2171815607
22192287243
23430893643

[2,3,7,23,43,139,283,659,1319,5179,9227,23159,
 55399,148439,366683,793439,1953839,4875119,
 9750239,27353747,71815607,192287243,430893643]