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A307728 as a simple table

na(n)
10
20
33
40
55
66
77
88
918
1020
1122
1224
1339
1428
1560
1648
1785
1872
1995
20100
21105
22132
23138
24144
25175
26182
27243
28224
29290
30270
31310
32320
33363
34408
35420
36432
37518
38494
39624
40560
41697
42672
43731
44792
45810
46920
47940
48960
491078
501100
511224
521196
531325
541404
551430

[0,0,3,0,5,6,7,8,18,20,22,24,39,28,60,48,85,72,95,
 100,105,132,138,144,175,182,243,224,290,270,310,
 320,363,408,420,432,518,494,624,560,697,672,731,
 792,810,920,940,960,1078,1100,1224,1196,1325,1404,
 1430]