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A074811 as a simple table

na(n)
11
21
31
4181
51
61061
71
81061
9181
101061
111
1240123
131
141061
151061
166473
171
1840123
191
2040123
211061
221061
231
241617211
25181
261061
271061
2840123
291
301617211
311
3240123
331061
341061
351061
3610553429
371
381061
391061
401617211
411
421617211
431
4440123
4540123
461061
471
4869709687

[1,1,1,181,1,1061,1,1061,181,1061,1,40123,1,1061,
 1061,6473,1,40123,1,40123,1061,1061,1,1617211,181,
 1061,1061,40123,1,1617211,1,40123,1061,1061,1061,
 10553429,1,1061,1061,1617211,1,1617211,1,40123,
 40123,1061,1,69709687]