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A133812 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1011
1112
1213
1315
1416
1517
1619
1723
1824
1925
2027
2129
2230
2331
2432
2535
2636
2737
2841
2943
3045
3147
3248
3349
3453
3559
3660
3761
3864
3967
4071
4172
4273
4377
4479
4581
4683
4789
4896
4997
50101
51103
52105
53107
54109
55113
56120
57121
58125
59127
60128
61131
62135
63137
64139
65143
66144

[1,2,3,4,5,6,7,8,9,11,12,13,15,16,17,19,23,24,25,
 27,29,30,31,32,35,36,37,41,43,45,47,48,49,53,59,
 60,61,64,67,71,72,73,77,79,81,83,89,96,97,101,103,
 105,107,109,113,120,121,125,127,128,131,135,137,
 139,143,144]