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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.

A121970 Numbers k such that if you subtract k from its reversal you get a positive number with the same digits as k.

Table of values

n a(n)
1 459
2 1467
3 1692
4 3285
5 8019
6 14967
7 16992
8 23706
9 23769
10 24894
11 26496
12 32796
13 32985
14 37206
15 40698
16 44397
17 45207
18 49599
19 62298
20 80199
21 80919
22 104697
23 106992
24 108729
25 108972
26 127809
27 134667
28 135378
29 135774
30 136818
31 136962
32 145827
33 147492

List of values

[459, 1467, 1692, 3285, 8019, 14967, 16992, 23706, 23769, 24894, 26496, 32796, 32985, 37206, 40698, 44397, 45207, 49599, 62298, 80199, 80919, 104697, 106992, 108729, 108972, 127809, 134667, 135378, 135774, 136818, 136962, 145827, 147492]