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A309839 as a simple table

na(n)
23
36
47
512
615
722
823
942
1043
1148
1263
1376
1479
1596
16115
17140
18143
19166
20167
21192
22247
23248
24279
25312
26347
27384
28423
29472
30483
31526
32527
33572
34619
35624
36719
37724
38827
39832
40889
41948
421009
431072
441087
451152
461219
471288
481359
491432
501507
511520
521597
531676
541679

[3,6,7,12,15,22,23,42,43,48,63,76,79,96,115,140,
 143,166,167,192,247,248,279,312,347,384,423,472,
 483,526,527,572,619,624,719,724,827,832,889,948,
 1009,1072,1087,1152,1219,1288,1359,1432,1507,1520,
 1597,1676,1679]