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A088318 as a simple table

na(n)
10
20
30
40
51
61
72
83
95
107
1110
1213
1318
1424
1532
1640
1751
1866
1983
20103
21128
22158
23194
24237
25288
26348
27419
28500
29612

[0,0,0,0,1,1,2,3,5,7,10,13,18,24,32,40,51,66,83,
 103,128,158,194,237,288,348,419,500,612]