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A180963 as a simple table

na(n)
121
242
369
481
584
687
793
8117
9138
10162
11168
12171
13174
14186
15213
16234
17261
18273
19276
20279
21285
22309
23321
24324
25327
26333
27336
28339
29342
30345
31348
32351
33357
34369
35372
36375
37381
38405
39426
40453
41465
42468
43471
44477
45501
46522
47546
48552
49555
50558
51570
52597
53618

[21,42,69,81,84,87,93,117,138,162,168,171,174,186,
 213,234,261,273,276,279,285,309,321,324,327,333,
 336,339,342,345,348,351,357,369,372,375,381,405,
 426,453,465,468,471,477,501,522,546,552,555,558,
 570,597,618]