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A036342 as a simple table

na(n)
12
23
35
47
511
623
767
889
94567
1023456789
1123456789101112123
12891011121234567891011
1323456789101112123456789101112123
14567891011121234567891011121234567891011
15121234567891011121234567891011121234567891011121
1691011121234567891011121234567891011121234567891011121234567

[2,3,5,7,11,23,67,89,4567,23456789,
 23456789101112123,891011121234567891011,
 23456789101112123456789101112123,
 567891011121234567891011121234567891011,
 121234567891011121234567891011121234567891011121,
 91011121234567891011121234567891011121234567891011\
 121234567]