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A120291 as a simple table

na(n)
13
21
311
43
529
61
759
81
9101
101
111
123
13239
1447
151
16191
1721
18251
19569
2064
211
2212
2325
24482
251061
261
271
2898
291481
30797
311721
32926
333
348
353
361214
371
38458
391
401544
4199
421724
431213
441916
451
462
471
483
494889
50853
515351
521
5349
543041
552113
563301
576871
583571
592473
6010
612661

[3,1,11,3,29,1,59,1,101,1,1,3,239,47,1,191,21,251,
 569,64,1,12,25,482,1061,1,1,98,1481,797,1721,926,
 3,8,3,1214,1,458,1,1544,99,1724,1213,1916,1,2,1,3,
 4889,853,5351,1,49,3041,2113,3301,6871,3571,2473,
 10,2661]