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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.

A069514 Numbers n such that sigma(reversal(n)) = reversal(sigma(n)). Ignore leading 0's.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 7
7 14
8 41
9 124
10 194
11 333
12 421
13 491
14 1324
15 4231
16 13324
17 17054
18 17571
19 42331
20 45071
21 120530
22 138465
23 386650
24 564831
25 1130324
26 1216360
27 1333324
28 1727571
29 1757271
30 1757571
31 1787871
32 2249422
33 4230311
34 4233331
35 4369634

List of values

[1, 2, 3, 4, 5, 7, 14, 41, 124, 194, 333, 421, 491, 1324, 4231, 13324, 17054, 17571, 42331, 45071, 120530, 138465, 386650, 564831, 1130324, 1216360, 1333324, 1727571, 1757271, 1757571, 1787871, 2249422, 4230311, 4233331, 4369634]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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