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.

A331365 Least k whose set of divisors contains exactly n Pythagorean quadruples, or 0 if no such k exists.

Table of values

n a(n)
1 42
2 84
3 168
4 252
5 672
6 756
7 420
8 504
9 2592
10 1872
11 840
12 1008
13 1512
14 2940
15 1680
16 2016
17 1260
18 4536
19 3360
20 3024
21 9450
22 4620
23 5880
24 6552
25 9504
26 6930
27 3780
28 8400
29 23184
30 25704
31 2520
32 6300
33 31752
34 8820
35 19800
36 11088
37 10920
38 13104
39 15840
40 19152
41 19656
42 16632
43 38016

List of values

[42, 84, 168, 252, 672, 756, 420, 504, 2592, 1872, 840, 1008, 1512, 2940, 1680, 2016, 1260, 4536, 3360, 3024, 9450, 4620, 5880, 6552, 9504, 6930, 3780, 8400, 23184, 25704, 2520, 6300, 31752, 8820, 19800, 11088, 10920, 13104, 15840, 19152, 19656, 16632, 38016]