A064222 - OEIS

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A064222 as a simple table

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	21
13	22
14	32
15	33
16	43
17	44
18	54
19	55
20	65
21	66
22	76
23	77
24	87
25	88
26	98
27	99
28	100
29	110
30	111
31	211
32	221
33	222
34	322
35	332
36	333
37	433
38	443
39	444
40	544
41	554
42	555
43	655
44	665
45	666
46	766
47	776
48	777
49	877
50	887
51	888
52	988
53	998
54	999
55	1000
56	1100
57	1110
58	1111
59	2111

[0,1,2,3,4,5,6,7,8,9,10,11,21,22,32,33,43,44,54, 55,65,66,76,77,87,88,98,99,100,110,111,211,221, 222,322,332,333,433,443,444,544,554,555,655,665, 666,766,776,777,877,887,888,988,998,999,1000,1100, 1110,1111,2111]