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.

A331257 Numerator of squared radius of inscribed circle of the n-th triangle with integer sides in the list given by A316841. Denominators are A331258.

Table of values

n a(n)
1 1
2 3
3 1
4 9
5 5
6 1
7 3
8 5
9 4
10 7
11 3
12 45
13 4
14 25
15 21
16 1
17 75
18 9
19 2
20 63
21 12
22 25
23 35
24 9
25 27
26 8
27 7
28 9
29 11
30 5
31 27
32 2
33 175
34 3
35 49
36 3
37 3
38 147
39 11
40 5
41 135
42 8
43 245
44 13
45 3
46 99
47 20
48 225
49 18
50 49
51 63
52 16
53 55
54 5
55 189
56 16
57 39
58 4
59 165
60 3
61 15
62 48
63 15
64 7
65 117
66 12
67 275
68 45
69 441
70 16

List of values

[1, 3, 1, 9, 5, 1, 3, 5, 4, 7, 3, 45, 4, 25, 21, 1, 75, 9, 2, 63, 12, 25, 35, 9, 27, 8, 7, 9, 11, 5, 27, 2, 175, 3, 49, 3, 3, 147, 11, 5, 135, 8, 245, 13, 3, 99, 20, 225, 18, 49, 63, 16, 55, 5, 189, 16, 39, 4, 165, 3, 15, 48, 15, 7, 117, 12, 275, 45, 441, 16]