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.

A020677 Numbers of form 3*x^2 + 4*y^2.

Table of values

n a(n)
1 0
2 3
3 4
4 7
5 12
6 16
7 19
8 27
9 28
10 31
11 36
12 39
13 43
14 48
15 52
16 63
17 64
18 67
19 75
20 76
21 79
22 84
23 91
24 100
25 103
26 108
27 111
28 112
29 124
30 127
31 139
32 144
33 147
34 148
35 151
36 156
37 163
38 171
39 172
40 175
41 183
42 192
43 196
44 199
45 208
46 211
47 219
48 223
49 228
50 243
51 244
52 247
53 252
54 256
55 259
56 268
57 271
58 279
59 283
60 291

List of values

[0, 3, 4, 7, 12, 16, 19, 27, 28, 31, 36, 39, 43, 48, 52, 63, 64, 67, 75, 76, 79, 84, 91, 100, 103, 108, 111, 112, 124, 127, 139, 144, 147, 148, 151, 156, 163, 171, 172, 175, 183, 192, 196, 199, 208, 211, 219, 223, 228, 243, 244, 247, 252, 256, 259, 268, 271, 279, 283, 291]

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

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