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.

A054004 Numbers k such that k and k+1 have the same number and sum of divisors.

Table of values

n a(n)
1 14
2 1334
3 1634
4 2685
5 33998
6 42818
7 64665
8 84134
9 109214
10 122073
11 166934
12 289454
13 383594
14 440013
15 544334
16 605985
17 649154
18 655005
19 792855
20 1642154
21 2284814
22 2305557
23 2913105
24 3571905
25 3682622
26 4701537
27 5181045
28 6431732

List of values

[14, 1334, 1634, 2685, 33998, 42818, 64665, 84134, 109214, 122073, 166934, 289454, 383594, 440013, 544334, 605985, 649154, 655005, 792855, 1642154, 2284814, 2305557, 2913105, 3571905, 3682622, 4701537, 5181045, 6431732]