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A064829 as a simple table

na(n)
23
37
47
513
613
731
831
943
1043
1173
1273
13271
14271
15271
16271
17313
18313
19313
20313
21313
22313
23421
24421
25421
26421
271303
281303
291303
301303
311303
321303
3323563
3423563
3535803
3635803
37187003
38187003
39187003
40187003
41936703
42936703
431426003
441426003
451426003
461426003

[3,7,7,13,13,31,31,43,43,73,73,271,271,271,271,
 313,313,313,313,313,313,421,421,421,421,1303,1303,
 1303,1303,1303,1303,23563,23563,35803,35803,
 187003,187003,187003,187003,936703,936703,1426003,
 1426003,1426003,1426003]