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A172301 as a simple table

na(n)
11
21
31
41
521
61
71
8357
9357
101
111
125797
1398549
145797
151
161
1793093
1825698101
1925698101
2093093
211
221
231490853
246608951349
25107316781429
266608951349
271490853
281
291
3023859109
311693829725237
32441691010116213
33441691010116213
341693829725237
3523859109
361

[1,1,1,1,21,1,1,357,357,1,1,5797,98549,5797,1,1,
 93093,25698101,25698101,93093,1,1,1490853,
 6608951349,107316781429,6608951349,1490853,1,1,
 23859109,1693829725237,441691010116213,
 441691010116213,1693829725237,23859109,1]