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A266751 as a simple table

na(n)
01
11
21
32
42
53
64
75
86
98
1010
1113
1216
1319
1424
1529
1635
1742
1851
1960
2072
2186
22102
23119
24140
25164
26191
27223
28258
29299
30345
31398
32457
33526
34600
35686
36783
37890
381011
391147
401298
411466
421656
431864
442098
452356
462642
472959
483311
493697
504125
514597
525115
535686
546314
557003
567757
578586
589490
5910481
6011564
6112745
6214033
6315440
6416968
6518633
6620446

[1,1,1,2,2,3,4,5,6,8,10,13,16,19,24,29,35,42,51,
 60,72,86,102,119,140,164,191,223,258,299,345,398,
 457,526,600,686,783,890,1011,1147,1298,1466,1656,
 1864,2098,2356,2642,2959,3311,3697,4125,4597,5115,
 5686,6314,7003,7757,8586,9490,10481,11564,12745,
 14033,15440,16968,18633,20446]