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A066686 as a simple table

n a(n)
1 11
2 12
3 21
4 13
5 22
6 31
7 14
8 23
9 32
10 41
11 15
12 24
13 33
14 42
15 51
16 16
17 25
18 34
19 43
20 52
21 61
22 17
23 26
24 35
25 44
26 53
27 62
28 71
29 18
30 27
31 36
32 45
33 54
34 63
35 72
36 81
37 19
38 28
39 37
40 46
41 55
42 64
43 73
44 82
45 91
46 110
47 29
48 38
49 47
50 56
51 65
52 74
53 83
54 92
55 101
56 111
57 210
58 39
59 48
60 57
61 66
62 75
63 84
64 93
65 102
66 111

[11,12,21,13,22,31,14,23,32,41,15,24,33,42,51,16,
 25,34,43,52,61,17,26,35,44,53,62,71,18,27,36,45,
 54,63,72,81,19,28,37,46,55,64,73,82,91,110,29,38,
 47,56,65,74,83,92,101,111,210,39,48,57,66,75,84,
 93,102,111]

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Last modified September 21 16:31 EDT 2021. Contains 347598 sequences. (Running on oeis4.)