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.

A243193 Nonnegative integers represented by the indefinite quadratic form -3x^2+3xy+4y^2.

Table of values

n a(n)
1 0
2 1
3 4
4 6
5 7
6 9
7 16
8 19
9 24
10 25
11 28
12 36
13 42
14 43
15 49
16 54
17 58
18 61
19 63
20 64
21 73
22 76
23 81
24 82
25 87
26 96
27 100
28 106
29 112
30 114
31 118
32 121
33 123
34 133
35 139
36 142
37 144
38 150
39 157
40 159
41 163
42 168
43 169
44 171
45 172
46 175
47 177
48 178
49 196
50 199
51 213
52 214
53 216
54 225
55 226
56 229
57 232
58 244
59 252

List of values

[0, 1, 4, 6, 7, 9, 16, 19, 24, 25, 28, 36, 42, 43, 49, 54, 58, 61, 63, 64, 73, 76, 81, 82, 87, 96, 100, 106, 112, 114, 118, 121, 123, 133, 139, 142, 144, 150, 157, 159, 163, 168, 169, 171, 172, 175, 177, 178, 196, 199, 213, 214, 216, 225, 226, 229, 232, 244, 252]