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A236433 as a simple table

na(n)
12
22
33
42
53
67
72
83
97
1043
112
123
1311
1423
1531
162
173
1811
1923
2031
2147059
222
233
2411
2517
26101
27149
283109
292
303
3111
3223
3331
3447059
352217342227
361729101023519

[2,2,3,2,3,7,2,3,7,43,2,3,11,23,31,2,3,11,23,31,
 47059,2,3,11,17,101,149,3109,2,3,11,23,31,47059,
 2217342227,1729101023519]