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.

A338485 Primitive numbers that are the sum of the squares of two of their distinct divisors.

Table of values

n a(n)
1 20
2 90
3 272
4 468
5 650
6 1332
7 2450
8 2900
9 3600
10 4160
11 6642
12 7650
13 10100
14 10388
15 14762
16 16400
17 20880
18 25578
19 27540
20 28730
21 38612
22 42048
23 50850
24 50960
25 54900
26 65792
27 83810
28 90650
29 98100
30 116948
31 125712
32 130682
33 141570
34 142400
35 149940
36 160400
37 194922
38 206100
39 214650

List of values

[20, 90, 272, 468, 650, 1332, 2450, 2900, 3600, 4160, 6642, 7650, 10100, 10388, 14762, 16400, 20880, 25578, 27540, 28730, 38612, 42048, 50850, 50960, 54900, 65792, 83810, 90650, 98100, 116948, 125712, 130682, 141570, 142400, 149940, 160400, 194922, 206100, 214650]

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

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