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A009087 as a simple table

na(n)
12
23
34
45
57
69
711
813
916
1017
1119
1223
1325
1429
1531
1637
1741
1843
1947
2049
2153
2259
2361
2464
2567
2671
2773
2879
2981
3083
3189
3297
33101
34103
35107
36109
37113
38121
39127
40131
41137
42139
43149
44151
45157
46163
47167
48169
49173
50179
51181
52191
53193
54197
55199
56211
57223
58227
59229
60233
61239

[2,3,4,5,7,9,11,13,16,17,19,23,25,29,31,37,41,43,
 47,49,53,59,61,64,67,71,73,79,81,83,89,97,101,103,
 107,109,113,121,127,131,137,139,149,151,157,163,
 167,169,173,179,181,191,193,197,199,211,223,227,
 229,233,239]