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A276381 as a simple table

na(n)
13
26
39
415
518
627
730
833
936
1039
1145
1248
1351
1454
1557
1660
1763
1866
1969
2072
2175
2278
2381
2484
2587
2690
2793
2896
2999
30105
31108
32117
33126
34129
35135
36138
37144
38147
39150
40153
41156
42159
43162
44165
45168
46171
47174
48177
49180
50183
51186
52189
53192
54195
55198
56207
57216
58219
59225
60228
61234
62243

[3,6,9,15,18,27,30,33,36,39,45,48,51,54,57,60,63,
 66,69,72,75,78,81,84,87,90,93,96,99,105,108,117,
 126,129,135,138,144,147,150,153,156,159,162,165,
 168,171,174,177,180,183,186,189,192,195,198,207,
 216,219,225,228,234,243]