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A315121 as a simple table

na(n)
01
15
29
39
410
516
624
731
830
929
1034
1140
1247
1350
1450
1554
1659
1762
1865
1969
2074
2180
2282
2381
2485
2592
2699
27102
28100
29102
30109
31118
32122
33119
34120
35125
36134
37142
38140
39140
40144
41149
42157
43159
44160
45165
46169
47173
48175
49178

[1,5,9,9,10,16,24,31,30,29,34,40,47,50,50,54,59,
 62,65,69,74,80,82,81,85,92,99,102,100,102,109,118,
 122,119,120,125,134,142,140,140,144,149,157,159,
 160,165,169,173,175,178]