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.

A020670 Numbers of form x^2 + 7y^2.

Table of values

n a(n)
1 0
2 1
3 4
4 7
5 8
6 9
7 11
8 16
9 23
10 25
11 28
12 29
13 32
14 36
15 37
16 43
17 44
18 49
19 53
20 56
21 63
22 64
23 67
24 71
25 72
26 77
27 79
28 81
29 88
30 92
31 99
32 100
33 107
34 109
35 112
36 113
37 116
38 121
39 127
40 128
41 137
42 144
43 148
44 149
45 151
46 161
47 163
48 169
49 172
50 175
51 176
52 179
53 184
54 191
55 193
56 196
57 197
58 200
59 203
60 207
61 211
62 212
63 224

List of values

[0, 1, 4, 7, 8, 9, 11, 16, 23, 25, 28, 29, 32, 36, 37, 43, 44, 49, 53, 56, 63, 64, 67, 71, 72, 77, 79, 81, 88, 92, 99, 100, 107, 109, 112, 113, 116, 121, 127, 128, 137, 144, 148, 149, 151, 161, 163, 169, 172, 175, 176, 179, 184, 191, 193, 196, 197, 200, 203, 207, 211, 212, 224]