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A319320 as a simple table

na(n)
11
21
31
41
52
61
73
82
93
104
115
124
136
147
157
169
1711
1812
1912
2015
2117
2220
2322
2424
2525
2631
2735
2839
2940
3048
3151
3255
3364
3473
3577
3685
3792
38104
39115
40126
41136
42147
43157
44176
45198
46211
47234
48246
49269
50294
51326
52350
53375
54403
55443
56475
57526
58560
59600
60650

[1,1,1,1,2,1,3,2,3,4,5,4,6,7,7,9,11,12,12,15,17,
 20,22,24,25,31,35,39,40,48,51,55,64,73,77,85,92,
 104,115,126,136,147,157,176,198,211,234,246,269,
 294,326,350,375,403,443,475,526,560,600,650]