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A284831 as a simple table

na(n)
11
22
33
44
55
66
77
89
910
1012
1114
1216
1318
1420
1522
1626
1727
1830
1933
2036
2139
2242
2345
2451
2552
2656
2761
2865
2970
3075
3180
3289
3391
3497
35104
36110
37117
38124
39131
40143
41146
42154
43164
44171
45180
46189
47198
48213
49217
50227
51240
52248
53259
54272
55282
56301
57307
58320
59337
60347
61361
62376
63390
64414
65422
66439
67461
68474
69492
70512

[1,2,3,4,5,6,7,9,10,12,14,16,18,20,22,26,27,30,33,
 36,39,42,45,51,52,56,61,65,70,75,80,89,91,97,104,
 110,117,124,131,143,146,154,164,171,180,189,198,
 213,217,227,240,248,259,272,282,301,307,320,337,
 347,361,376,390,414,422,439,461,474,492,512]