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A351494 as a simple table

na(n)
12
23
37
45
523
63
723
82
931
1011
1147
123
13479
1411
157
162
17263
1819
1971
205
217
2223
23839
2411
25887
26107
27103
285
291031
303
313119
3229
33239
34131
3523
367
37599
38599
3971
402
41167
423
4317159
4411
457
4647
479239
485
49191
50443
51199
5253
53839
54211
55311
562
5723
5859
592111
605
612207
6259
6379
64251
65263
667
672399
68149
6931
7011

[2,3,7,5,23,3,23,2,31,11,47,3,479,11,7,2,263,19,
 71,5,7,23,839,11,887,107,103,5,1031,3,3119,29,239,
 131,23,7,599,599,71,2,167,3,17159,11,7,47,9239,5,
 191,443,199,53,839,211,311,2,23,59,2111,5,2207,59,
 79,251,263,7,2399,149,31,11]