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.

A242665 Nonnegative integers of the form -x^2 + 4xy + 2y^2.

Table of values

n a(n)
1 0
2 2
3 5
4 6
5 8
6 15
7 18
8 20
9 23
10 24
11 29
12 32
13 38
14 45
15 47
16 50
17 53
18 54
19 60
20 69
21 71
22 72
23 80
24 86
25 87
26 92
27 95
28 96
29 98
30 101
31 114
32 116
33 125
34 128
35 134
36 135
37 141
38 146
39 149
40 150
41 152
42 159
43 162
44 167
45 173
46 180
47 188
48 191
49 194
50 197
51 200
52 207
53 212
54 213
55 215
56 216
57 230
58 239
59 240
60 242
61 245
62 258
63 261
64 263
65 269
66 276
67 278
68 284
69 285
70 288
71 290
72 293
73 294

List of values

[0, 2, 5, 6, 8, 15, 18, 20, 23, 24, 29, 32, 38, 45, 47, 50, 53, 54, 60, 69, 71, 72, 80, 86, 87, 92, 95, 96, 98, 101, 114, 116, 125, 128, 134, 135, 141, 146, 149, 150, 152, 159, 162, 167, 173, 180, 188, 191, 194, 197, 200, 207, 212, 213, 215, 216, 230, 239, 240, 242, 245, 258, 261, 263, 269, 276, 278, 284, 285, 288, 290, 293, 294]