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A002473 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1112
1214
1315
1416
1518
1620
1721
1824
1925
2027
2128
2230
2332
2435
2536
2640
2742
2845
2948
3049
3150
3254
3356
3460
3563
3664
3770
3872
3975
4080
4181
4284
4390
4496
4598
46100
47105
48108
49112
50120
51125
52126
53128
54135
55140
56144
57147
58150
59160
60162
61168
62175
63180
64189
65192

[1,2,3,4,5,6,7,8,9,10,12,14,15,16,18,20,21,24,25,
 27,28,30,32,35,36,40,42,45,48,49,50,54,56,60,63,
 64,70,72,75,80,81,84,90,96,98,100,105,108,112,120,
 125,126,128,135,140,144,147,150,160,162,168,175,
 180,189,192]