cp's OEIS Frontend

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.

A015880 Numbers k such that sigma(k) = sigma(k+10).

Table of values

n a(n)
1 21
2 174
3 270
4 517
5 572
6 913
7 992
8 1002
9 1420
10 1633
11 1830
12 2622
13 2958
14 4170
15 4747
16 5539
17 7520
18 7544
19 7729
20 10184
21 10783
22 14863
23 16165
24 16520
25 19837
26 20935
27 21584
28 23161
29 26840
30 28544
31 29737
32 31453
33 34510
34 35571
35 35611
36 35845
37 39560

List of values

[21, 174, 270, 517, 572, 913, 992, 1002, 1420, 1633, 1830, 2622, 2958, 4170, 4747, 5539, 7520, 7544, 7729, 10184, 10783, 14863, 16165, 16520, 19837, 20935, 21584, 23161, 26840, 28544, 29737, 31453, 34510, 35571, 35611, 35845, 39560]