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A231056 as a simple table

na(n)
20
31
41
52
64
75
88
910
1013
1116
1220
1324
1429
1534
1640
1745
1851
1958
2065
2173
2280
2388
2497
25106
26116
27125
28135
29146
30157
31169
32180
33192
34205
35218
36232
37245
38259
39274
40289
41305
42320
43336
44353
45370
46388
47405
48423
49442
50461
51481
52500
53520
54541
55562
56584
57605
58627
59650
60673
61697
62720
63744
64769
65794

[0,1,1,2,4,5,8,10,13,16,20,24,29,34,40,45,51,58,
 65,73,80,88,97,106,116,125,135,146,157,169,180,
 192,205,218,232,245,259,274,289,305,320,336,353,
 370,388,405,423,442,461,481,500,520,541,562,584,
 605,627,650,673,697,720,744,769,794]