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A308515 as a simple table

na(n)
10
20
30
40
52
62
75
83
93
100
1112
129
139
145
1527
1618
1718
1813
1913
207
217
220
2351
2445
2545
2638
27108
2893
2993
3076
3176
3257
3357
3436
35153
36133
37133
38111
39256
40222
41222
42199
43199
44174
45174
46147
47357
48316
49316
50272
51272
52225
53225
54193
55193
56159
57159
58123
59453
60420
61420

[0,0,0,0,2,2,5,3,3,0,12,9,9,5,27,18,18,13,13,7,7,
 0,51,45,45,38,108,93,93,76,76,57,57,36,153,133,
 133,111,256,222,222,199,199,174,174,147,357,316,
 316,272,272,225,225,193,193,159,159,123,453,420,
 420]