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A203016 as a simple table

na(n)
13
26
39
412
521
624
727
830
939
1042
1145
1248
1357
1460
1563
1666
1775
1878
1981
2084
2193
2296
2399
24102
25111
26114
27117
28120
29129
30132
31135
32138
33147
34150
35153
36156
37165
38168
39171
40174
41183
42186
43189
44192
45201
46204
47207
48210
49219
50222
51225
52228
53237
54240
55243
56246
57255
58258
59261
60264
61273
62276
63279
64282
65291
66294
67297

[3,6,9,12,21,24,27,30,39,42,45,48,57,60,63,66,75,
 78,81,84,93,96,99,102,111,114,117,120,129,132,135,
 138,147,150,153,156,165,168,171,174,183,186,189,
 192,201,204,207,210,219,222,225,228,237,240,243,
 246,255,258,261,264,273,276,279,282,291,294,297]