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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.

A198468 Consider triples a<=b where (a^2+b^2-c^2)/(c-a-b) = -1, ordered by a and then b; sequence gives c values.

Table of values

n a(n)
1 4
2 7
3 11
4 9
5 16
6 12
7 22
8 29
9 14
10 37
11 17
12 24
13 46
14 29
15 56
16 19
17 24
18 67
19 22
20 28
21 79
22 47
23 92
24 21
25 24
26 37
27 54
28 106
29 27
30 42
31 121
32 137
33 29
34 53
35 78
36 154
37 32
38 59
39 87
40 172
41 41
42 50
43 191
44 34
45 45
46 55
47 72
48 211
49 37
50 42
51 79
52 117
53 232
54 128
55 254
56 39
57 94
58 277
59 42
60 63
61 102
62 301

List of values

[4, 7, 11, 9, 16, 12, 22, 29, 14, 37, 17, 24, 46, 29, 56, 19, 24, 67, 22, 28, 79, 47, 92, 21, 24, 37, 54, 106, 27, 42, 121, 137, 29, 53, 78, 154, 32, 59, 87, 172, 41, 50, 191, 34, 45, 55, 72, 211, 37, 42, 79, 117, 232, 128, 254, 39, 94, 277, 42, 63, 102, 301]