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.

A092574 Positive integers that can be represented in the form x^2 + 3y^2 with (x,y) = 1 and x and y positive.

Table of values

n a(n)
1 4
2 7
3 12
4 13
5 19
6 21
7 28
8 31
9 37
10 39
11 43
12 49
13 52
14 57
15 61
16 67
17 73
18 76
19 79
20 84
21 91
22 93
23 97
24 103
25 109
26 111
27 124
28 127
29 129
30 133
31 139
32 147
33 148
34 151
35 156
36 157
37 163
38 169
39 172
40 181
41 183
42 193
43 196
44 199
45 201
46 211
47 217
48 219
49 223
50 228
51 229
52 237
53 241
54 244
55 247
56 259
57 268

List of values

[4, 7, 12, 13, 19, 21, 28, 31, 37, 39, 43, 49, 52, 57, 61, 67, 73, 76, 79, 84, 91, 93, 97, 103, 109, 111, 124, 127, 129, 133, 139, 147, 148, 151, 156, 157, 163, 169, 172, 181, 183, 193, 196, 199, 201, 211, 217, 219, 223, 228, 229, 237, 241, 244, 247, 259, 268]

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

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