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.

A229081 Numbers n such that there exists a square m^2 with 3n^2 - n <= m^2 <= 3n^2 + n.

Table of values

n a(n)
1 1
2 3
3 4
4 7
5 8
6 11
7 12
8 14
9 15
10 16
11 18
12 19
13 22
14 23
15 26
16 27
17 29
18 30
19 33
20 34
21 37
22 38
23 40
24 41
25 42
26 44
27 45
28 48
29 49
30 52
31 53
32 55
33 56
34 57
35 59
36 60
37 63
38 64
39 67
40 68
41 70
42 71
43 74
44 75
45 78
46 79
47 82
48 83
49 85
50 86
51 89
52 90
53 93
54 94
55 96
56 97
57 98
58 100
59 101
60 104
61 105
62 108
63 109
64 111
65 112
66 113
67 115
68 116
69 119
70 120
71 123
72 124
73 126

List of values

[1, 3, 4, 7, 8, 11, 12, 14, 15, 16, 18, 19, 22, 23, 26, 27, 29, 30, 33, 34, 37, 38, 40, 41, 42, 44, 45, 48, 49, 52, 53, 55, 56, 57, 59, 60, 63, 64, 67, 68, 70, 71, 74, 75, 78, 79, 82, 83, 85, 86, 89, 90, 93, 94, 96, 97, 98, 100, 101, 104, 105, 108, 109, 111, 112, 113, 115, 116, 119, 120, 123, 124, 126]