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.

A297294 Number of primitive Pythagorean triples (PPTs) that have 2^n-1 as the length of their odd leg where n is the sequence index.

Table of values

n a(n)
1 0
2 1
3 1
4 2
5 1
6 2
7 1
8 4
9 2
10 4
11 2
12 8
13 1
14 4
15 4
16 8
17 1
18 8
19 1
20 16
21 4
22 8
23 2
24 32
25 4
26 4
27 4
28 32
29 4
30 32
31 1
32 16
33 8
34 4
35 8
36 128
37 2
38 4
39 8
40 64
41 2
42 32
43 4
44 64
45 32
46 8
47 4
48 256
49 2
50 64
51 16
52 64
53 4
54 32
55 32
56 128
57 8
58 32
59 2
60 1024
61 1
62 4
63 32
64 64
65 4
66 128
67 2
68 64
69 8
70 256
71 4
72 2048
73 4
74 16
75 64
76 64
77 8
78 64
79 4
80 256
81 32
82 16
83 2
84 2048
85 4
86 16
87 32
88 512
89 1
90 1024

List of values

[0, 1, 1, 2, 1, 2, 1, 4, 2, 4, 2, 8, 1, 4, 4, 8, 1, 8, 1, 16, 4, 8, 2, 32, 4, 4, 4, 32, 4, 32, 1, 16, 8, 4, 8, 128, 2, 4, 8, 64, 2, 32, 4, 64, 32, 8, 4, 256, 2, 64, 16, 64, 4, 32, 32, 128, 8, 32, 2, 1024, 1, 4, 32, 64, 4, 128, 2, 64, 8, 256, 4, 2048, 4, 16, 64, 64, 8, 64, 4, 256, 32, 16, 2, 2048, 4, 16, 32, 512, 1, 1024]