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A160677 as a simple table

na(n)
12
27
320
422
536
670
772
897
9153
10200
11202
12207
13220
14222
15236
16315
17351
18360
19362
20379
21448
22653
23700
24702
25707
26720
27722
28736
29871
30970
31972
32997
331035
341087
351177
361235
371267
381350
391352
401357
411386
421537
431677
441735
451767
461818
471836
481870
491872
501897

[2,7,20,22,36,70,72,97,153,200,202,207,220,222,
 236,315,351,360,362,379,448,653,700,702,707,720,
 722,736,871,970,972,997,1035,1087,1177,1235,1267,
 1350,1352,1357,1386,1537,1677,1735,1767,1818,1836,
 1870,1872,1897]