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A064039 as a simple table

n a(n)
1 0
2 1
3 10
4 11
5 21
6 20
7 100
8 101
9 110
10 111
11 121
12 120
13 210
14 211
15 200
16 201
17 220
18 221
19 311
20 310
21 321
22 320
23 301
24 300
25 1000
26 1001
27 1010
28 1011
29 1021
30 1020
31 1100
32 1101
33 1110
34 1111
35 1121
36 1120
37 1210
38 1211
39 1200
40 1201
41 1220
42 1221
43 1311
44 1310
45 1321
46 1320
47 1301
48 1300

[0,1,10,11,21,20,100,101,110,111,121,120,210,211,
 200,201,220,221,311,310,321,320,301,300,1000,1001,
 1010,1011,1021,1020,1100,1101,1110,1111,1121,1120,
 1210,1211,1200,1201,1220,1221,1311,1310,1321,1320,
 1301,1300]

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Last modified August 8 11:31 EDT 2020. Contains 336298 sequences. (Running on oeis4.)