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A161664 as a simple table

na(n)
10
20
31
42
55
67
712
816
922
1028
1137
1243
1354
1464
1575
1686
17101
18113
19130
20144
21161
22179
23200
24216
25238
26260
27283
28305
29332
30354
31383
32409
33438
34468
35499
36526
37561
38595
39630
40662
41701
42735
43776
44814
45853
46895
47940
48978
491024
501068
511115
521161
531212
541258
551309

[0,0,1,2,5,7,12,16,22,28,37,43,54,64,75,86,101,
 113,130,144,161,179,200,216,238,260,283,305,332,
 354,383,409,438,468,499,526,561,595,630,662,701,
 735,776,814,853,895,940,978,1024,1068,1115,1161,
 1212,1258,1309]