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A003252 as a simple table

na(n)
13
26
39
412
515
618
721
823
926
1029
1132
1235
1338
1441
1544
1647
1750
1853
1956
2059
2161
2264
2367
2470
2573
2676
2779
2882
2984
3087
3190
3293
3396
3499
35102
36105
37108
38111
39114
40117
41120
42122
43125
44128
45131
46134
47137
48140
49143
50145
51148
52151
53154
54157
55159
56162
57165
58168
59171

[3,6,9,12,15,18,21,23,26,29,32,35,38,41,44,47,50,
 53,56,59,61,64,67,70,73,76,79,82,84,87,90,93,96,
 99,102,105,108,111,114,117,120,122,125,128,131,
 134,137,140,143,145,148,151,154,157,159,162,165,
 168,171]