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.

A341420 The positive integer numbers k represented properly by the binary quadratic form x^2 + 4*y^2.

Table of values

n a(n)
1 1
2 4
3 5
4 8
5 13
6 17
7 20
8 25
9 29
10 37
11 40
12 41
13 52
14 53
15 61
16 65
17 68
18 73
19 85
20 89
21 97
22 100
23 101
24 104
25 109
26 113
27 116
28 125
29 136
30 137
31 145
32 148
33 149
34 157
35 164
36 169
37 173
38 181
39 185
40 193
41 197
42 200
43 205
44 212
45 221
46 229
47 232
48 233
49 241
50 244
51 257
52 260
53 265
54 269
55 277
56 281
57 289
58 292
59 293
60 296

List of values

[1, 4, 5, 8, 13, 17, 20, 25, 29, 37, 40, 41, 52, 53, 61, 65, 68, 73, 85, 89, 97, 100, 101, 104, 109, 113, 116, 125, 136, 137, 145, 148, 149, 157, 164, 169, 173, 181, 185, 193, 197, 200, 205, 212, 221, 229, 232, 233, 241, 244, 257, 260, 265, 269, 277, 281, 289, 292, 293, 296]