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A006055 as a simple table

na(n)
12
23
35
47
523
667
789
84567
978901
10678901
1123456789
1245678901
139012345678901
14789012345678901
1556789012345678901234567890123
1690123456789012345678901234567
17678901234567890123456789012345678901

[2,3,5,7,23,67,89,4567,78901,678901,23456789,
 45678901,9012345678901,789012345678901,
 56789012345678901234567890123,
 90123456789012345678901234567,
 678901234567890123456789012345678901]