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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.

A115897 Numbers k such that sigma(k) + phi(k) is a palindrome.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 10
6 11
7 21
8 49
9 92
10 101
11 115
12 131
13 145
14 186
15 200
16 201
17 206
18 207
19 221
20 226
21 227
22 240
23 272
24 302
25 310
26 313
27 327
28 342
29 344
30 370
31 374
32 388
33 403
34 406
35 409
36 413
37 419
38 425
39 439
40 449
41 880
42 948
43 1015
44 1055
45 1132
46 1165
47 1385
48 1443
49 1680
50 1755
51 1785

List of values

[1, 2, 3, 4, 10, 11, 21, 49, 92, 101, 115, 131, 145, 186, 200, 201, 206, 207, 221, 226, 227, 240, 272, 302, 310, 313, 327, 342, 344, 370, 374, 388, 403, 406, 409, 413, 419, 425, 439, 449, 880, 948, 1015, 1055, 1132, 1165, 1385, 1443, 1680, 1755, 1785]

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

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