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.

A385810 Integers x such that sigma(x)^2 - 3*x^2 is a square.

Table of values

n a(n)
1 4
2 6
3 28
4 45
5 48
6 60
7 156
8 208
9 360
10 496
11 1170
12 2016
13 2520
14 2925
15 5733
16 7605
17 8128
18 166617
19 167580
20 380160
21 659044
22 964080
23 1085760
24 1539900
25 1571328
26 1693440
27 1778400
28 2069613
29 2224800
30 2306304
31 2410200
32 2502720
33 2522880
34 4242420
35 4311216
36 4840192
37 4917744
38 4961484
39 5331744
40 5761536

List of values

[4, 6, 28, 45, 48, 60, 156, 208, 360, 496, 1170, 2016, 2520, 2925, 5733, 7605, 8128, 166617, 167580, 380160, 659044, 964080, 1085760, 1539900, 1571328, 1693440, 1778400, 2069613, 2224800, 2306304, 2410200, 2502720, 2522880, 4242420, 4311216, 4840192, 4917744, 4961484, 5331744, 5761536]

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

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