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.

A165564 Numbers which are not congruent numbers, i.e., positive integers which are not the area of any right triangle with rational sides.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 8
6 9
7 10
8 11
9 12
10 16
11 17
12 18
13 19
14 25
15 26
16 27
17 32
18 33
19 35
20 36
21 40
22 42
23 43
24 44
25 48
26 49
27 50
28 51
29 57
30 58
31 59
32 64
33 66
34 67
35 68
36 72
37 73
38 74
39 75
40 76
41 81
42 82
43 83
44 89
45 90
46 91
47 97
48 98
49 99
50 100
51 104
52 105
53 106
54 107
55 108
56 113
57 114
58 115
59 121
60 122
61 123
62 128
63 129
64 130

List of values

[1, 2, 3, 4, 8, 9, 10, 11, 12, 16, 17, 18, 19, 25, 26, 27, 32, 33, 35, 36, 40, 42, 43, 44, 48, 49, 50, 51, 57, 58, 59, 64, 66, 67, 68, 72, 73, 74, 75, 76, 81, 82, 83, 89, 90, 91, 97, 98, 99, 100, 104, 105, 106, 107, 108, 113, 114, 115, 121, 122, 123, 128, 129, 130]