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.

A076647 Numbers n such that phi(n) + phi(n+1) = sigma(n)/2.

Table of values

n a(n)
1 56
2 456
3 476
4 828
5 846
6 1196
7 2060
8 2780
9 4484
10 7530
11 9174
12 11420
13 11475
14 11865
15 13454
16 22154
17 34916
18 35385
19 52185
20 67308
21 105798
22 140895
23 168872
24 190840
25 219852
26 241892
27 244074
28 267225
29 303834
30 317564
31 330484
32 335440
33 460292
34 580970
35 658515

List of values

[56, 456, 476, 828, 846, 1196, 2060, 2780, 4484, 7530, 9174, 11420, 11475, 11865, 13454, 22154, 34916, 35385, 52185, 67308, 105798, 140895, 168872, 190840, 219852, 241892, 244074, 267225, 303834, 317564, 330484, 335440, 460292, 580970, 658515]