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A313943 as a simple table

na(n)
01
15
210
317
420
525
635
735
842
947
1054
1156
1264
1368
1476
1575
1687
1789
1895
1997
20109
21108
22118
23118
24130
25128
26139
27140
28151
29147
30163
31160
32171
33170
34183
35180
36193
37190
38207
39198
40215
41213
42225
43220
44237
45232
46248
47240
48260
49252

[1,5,10,17,20,25,35,35,42,47,54,56,64,68,76,75,87,
 89,95,97,109,108,118,118,130,128,139,140,151,147,
 163,160,171,170,183,180,193,190,207,198,215,213,
 225,220,237,232,248,240,260,252]