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A043225 as a simple table

n a(n)
1 12
2 21
3 112
4 120
5 210
6 221
7 312
8 321
9 412
10 421
11 512
12 521
13 612
14 621
15 712
16 721
17 812
18 821
19 912
20 921
21 1012
22 1021
23 1112
24 1120
25 1200
26 1312
27 1321
28 1412
29 1421
30 1512
31 1521
32 1612
33 1621
34 1712
35 1721
36 1812
37 1821
38 1912
39 1921
40 2012
41 2021

[12,21,112,120,210,221,312,321,412,421,512,521,
 612,621,712,721,812,821,912,921,1012,1021,1112,
 1120,1200,1312,1321,1412,1421,1512,1521,1612,1621,
 1712,1721,1812,1821,1912,1921,2012,2021]

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)