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A193491 as a simple table

na(n)
11
21
32
43
51
67
71
81
913
105
111
121
1331
149
156
161
171
1866
1929
2011
217
221
231
24159
2562
2642
2713
288
291
301
31365
32181
3392
3455
3515
369
371
381
39900
40422
41294
42127
4370
4417
4510
461
471
482162
491166
50720
51435
52165
5386
5419
5511
561
571
585417
592885
602119
611110
62608
63208
64104
6521
6612
671
681

[1,1,2,3,1,7,1,1,13,5,1,1,31,9,6,1,1,66,29,11,7,1,
 1,159,62,42,13,8,1,1,365,181,92,55,15,9,1,1,900,
 422,294,127,70,17,10,1,1,2162,1166,720,435,165,86,
 19,11,1,1,5417,2885,2119,1110,608,208,104,21,12,1,
 1]