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A084644 as a simple table

na(n)
12
23
34
47
519
637
755
885
9121
10147
11148
12150
13151
14187
15188
16190
17191
18192
19193
20198
21199
22235
23241
24264
25267
26269
27270
28291
29292
30293
31294
32295
33343
34346
35347
36348
37349
38408
39409
40412
41414
42415
43417
44418
45419
46420
47421
48481
49499
50564
51565
52649
53689
54690
55721

[2,3,4,7,19,37,55,85,121,147,148,150,151,187,188,
 190,191,192,193,198,199,235,241,264,267,269,270,
 291,292,293,294,295,343,346,347,348,349,408,409,
 412,414,415,417,418,419,420,421,481,499,564,565,
 649,689,690,721]