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A174090 as a simple table

na(n)
11
22
33
44
55
67
78
811
913
1016
1117
1219
1323
1429
1531
1632
1737
1841
1943
2047
2153
2259
2361
2464
2567
2671
2773
2879
2983
3089
3197
32101
33103
34107
35109
36113
37127
38128
39131
40137
41139
42149
43151
44157
45163
46167
47173
48179
49181
50191
51193
52197
53199
54211
55223
56227
57229
58233
59239
60241
61251
62256

[1,2,3,4,5,7,8,11,13,16,17,19,23,29,31,32,37,41,
 43,47,53,59,61,64,67,71,73,79,83,89,97,101,103,
 107,109,113,127,128,131,137,139,149,151,157,163,
 167,173,179,181,191,193,197,199,211,223,227,229,
 233,239,241,251,256]