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.

A349664 a(n) is the number of solutions for n^4 = z^2 - x^2 with {z,x} >= 1.

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 2
6 7
7 2
8 5
9 4
10 7
11 2
12 17
13 2
14 7
15 12
16 7
17 2
18 13
19 2
20 17
21 12
22 7
23 2
24 27
25 4
26 7
27 6
28 17
29 2
30 37
31 2
32 9
33 12
34 7
35 12
36 31
37 2
38 7
39 12
40 27
41 2
42 37
43 2
44 17
45 22
46 7
47 2
48 37
49 4
50 13
51 12
52 17
53 2
54 19
55 12
56 27
57 12
58 7
59 2
60 87
61 2
62 7
63 22
64 11
65 12
66 37
67 2
68 17
69 12
70 37
71 2
72 49
73 2
74 7
75 22

List of values

[0, 1, 2, 3, 2, 7, 2, 5, 4, 7, 2, 17, 2, 7, 12, 7, 2, 13, 2, 17, 12, 7, 2, 27, 4, 7, 6, 17, 2, 37, 2, 9, 12, 7, 12, 31, 2, 7, 12, 27, 2, 37, 2, 17, 22, 7, 2, 37, 4, 13, 12, 17, 2, 19, 12, 27, 12, 7, 2, 87, 2, 7, 22, 11, 12, 37, 2, 17, 12, 37, 2, 49, 2, 7, 22]

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

Content is available under The OEIS End-User License Agreement.