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A016051 as a simple table

na(n)
13
26
312
415
521
624
730
833
939
1042
1148
1251
1357
1460
1566
1669
1775
1878
1984
2087
2193
2296
23102
24105
25111
26114
27120
28123
29129
30132
31138
32141
33147
34150
35156
36159
37165
38168
39174
40177
41183
42186
43192
44195
45201
46204
47210
48213
49219
50222
51228
52231
53237
54240

[3,6,12,15,21,24,30,33,39,42,48,51,57,60,66,69,75,
 78,84,87,93,96,102,105,111,114,120,123,129,132,
 138,141,147,150,156,159,165,168,174,177,183,186,
 192,195,201,204,210,213,219,222,228,231,237,240]