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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A212958 Array with a variable number of columns, where terms in the n-th row are the differences (computed in decimal base and divided by 9) between equal ratio permutations, found in the base n>=2, and the first (in ascending order of digits) minimal value permutation of {0,1,...,n}.

Table of values

n a(n)
1 0
2 0
3 1
4 1
5 0
6 1
7 12
8 22
9 0
10 21
11 22
12 123
13 131
14 343
15 0
16 342
17 343
18 1234
19 2531
20 4664
21 0
22 1421
23 3242
24 4663
25 12345
26 58985
27 0
28 58984
29 58985
30 23456
31 497531
32 713306
33 0
34 137421
35 276842
36 436463
37 575884
38 713305
39 713306
40 1234567
41 1810675
42 2907844
43 4002993
44 6197531
45 8367727

List of values

[0, 0, 1, 1, 0, 1, 12, 22, 0, 21, 22, 123, 131, 343, 0, 342, 343, 1234, 2531, 4664, 0, 1421, 3242, 4663, 12345, 58985, 0, 58984, 58985, 23456, 497531, 713306, 0, 137421, 276842, 436463, 575884, 713305, 713306, 1234567, 1810675, 2907844, 4002993, 6197531, 8367727]