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A171217 as a simple table

na(n)
11
22
33
45
57
68
79
811
913
1017
1119
1223
1325
1429
1531
1632
1737
1841
1943
2047
2149
2253
2359
2461
2567
2671
2773
2879
2983
3089
3197
32101
33103
34107
35109
36113
37121
38125
39127
40128
41131
42137
43139
44149
45151
46157
47163
48167
49169
50173
51179
52181
53191
54193
55197
56199
57211
58223
59227
60229
61233
62239

[1,2,3,5,7,8,9,11,13,17,19,23,25,29,31,32,37,41,
 43,47,49,53,59,61,67,71,73,79,83,89,97,101,103,
 107,109,113,121,125,127,128,131,137,139,149,151,
 157,163,167,169,173,179,181,191,193,197,199,211,
 223,227,229,233,239]