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.

A243191 Nonnegative integers represented by the indefinite quadratic form x^2+7xy-y^2.

Table of values

n a(n)
1 0
2 1
3 4
4 7
5 9
6 11
7 13
8 16
9 17
10 25
11 28
12 29
13 36
14 37
15 43
16 44
17 47
18 49
19 52
20 53
21 59
22 63
23 64
24 68
25 77
26 81
27 89
28 91
29 97
30 99
31 100
32 107
33 112
34 113
35 116
36 117
37 119
38 121
39 131
40 143
41 144
42 148
43 149
44 153
45 163
46 169
47 172
48 175
49 176
50 187
51 188
52 196
53 197
54 199
55 203
56 208
57 211
58 212
59 221

List of values

[0, 1, 4, 7, 9, 11, 13, 16, 17, 25, 28, 29, 36, 37, 43, 44, 47, 49, 52, 53, 59, 63, 64, 68, 77, 81, 89, 91, 97, 99, 100, 107, 112, 113, 116, 117, 119, 121, 131, 143, 144, 148, 149, 153, 163, 169, 172, 175, 176, 187, 188, 196, 197, 199, 203, 208, 211, 212, 221]