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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.

A308303 Number of integer-sided triangles with perimeter n and at least one even side length.

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 1
6 1
7 1
8 1
9 2
10 2
11 2
12 3
13 4
14 4
15 4
16 5
17 6
18 7
19 6
20 8
21 9
22 10
23 9
24 12
25 12
26 14
27 12
28 16
29 16
30 19
31 16
32 21
33 20
34 24
35 20
36 27
37 25
38 30
39 25
40 33
41 30
42 37
43 30
44 40
45 36
46 44
47 36
48 48
49 42
50 52
51 42
52 56
53 49
54 61
55 49
56 65
57 56
58 70
59 56
60 75
61 64
62 80
63 64
64 85
65 72
66 91
67 72
68 96
69 81
70 102

List of values

[0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 7, 6, 8, 9, 10, 9, 12, 12, 14, 12, 16, 16, 19, 16, 21, 20, 24, 20, 27, 25, 30, 25, 33, 30, 37, 30, 40, 36, 44, 36, 48, 42, 52, 42, 56, 49, 61, 49, 65, 56, 70, 56, 75, 64, 80, 64, 85, 72, 91, 72, 96, 81, 102]

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

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