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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.

A089020 First value y satisfying x^2 - 3*y^2 = d^2, where d=A072330(n).

Table of values

n a(n)
1 1
2 4
3 3
4 7
5 5
6 8
7 11
8 16
9 20
10 7
11 13
12 20
13 12
14 44
15 9
16 51
17 17
18 52
19 57
20 55
21 19
22 11
23 16
24 28
25 72
26 91
27 36
28 65
29 69
30 13
31 23
32 68
33 20
34 25
35 105
36 15
37 88
38 76
39 44
40 120
41 145
42 40
43 87
44 119
45 29
46 85
47 24
48 17
49 155
50 132
51 93
52 31
53 44
54 104
55 52
56 92
57 95
58 19
59 140
60 200
61 28
62 105
63 231
64 35
65 100
66 185
67 105
68 120

List of values

[1, 4, 3, 7, 5, 8, 11, 16, 20, 7, 13, 20, 12, 44, 9, 51, 17, 52, 57, 55, 19, 11, 16, 28, 72, 91, 36, 65, 69, 13, 23, 68, 20, 25, 105, 15, 88, 76, 44, 120, 145, 40, 87, 119, 29, 85, 24, 17, 155, 132, 93, 31, 44, 104, 52, 92, 95, 19, 140, 200, 28, 105, 231, 35, 100, 185, 105, 120]

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

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