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A025473 as a simple table

na(n)
11
22
33
42
55
67
72
83
911
1013
112
1217
1319
1423
155
163
1729
1831
192
2037
2141
2243
2347
247
2553
2659
2761
282
2967
3071
3173
3279
333
3483
3589
3697
37101
38103
39107
40109
41113
4211
435
44127
452
46131
47137
48139
49149
50151
51157
52163
53167
5413
55173
56179
57181
58191
59193
60197
61199
62211
63223
64227
65229
66233
67239

[1,2,3,2,5,7,2,3,11,13,2,17,19,23,5,3,29,31,2,37,
 41,43,47,7,53,59,61,2,67,71,73,79,3,83,89,97,101,
 103,107,109,113,11,5,127,2,131,137,139,149,151,
 157,163,167,13,173,179,181,191,193,197,199,211,
 223,227,229,233,239]