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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.

A292149 Number of distinct convex heptagons that can be formed from n congruent isosceles right triangles. Reflections are not counted as distinct.

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 0
11 0
12 0
13 0
14 0
15 1
16 0
17 1
18 1
19 0
20 0
21 1
22 1
23 2
24 1
25 1
26 3
27 2
28 1
29 3
30 2
31 3
32 1
33 4
34 6
35 3
36 3
37 3
38 3
39 8
40 1
41 8
42 11
43 3
44 4
45 5
46 8
47 9
48 5
49 11
50 8
51 11
52 6
53 10
54 13
55 8
56 9
57 11
58 17
59 13
60 6
61 14
62 11
63 21
64 8
65 15
66 25
67 13
68 12
69 17
70 20
71 22
72 12
73 18
74 24
75 22
76 13
77 27
78 27

List of values

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 2, 1, 1, 3, 2, 1, 3, 2, 3, 1, 4, 6, 3, 3, 3, 3, 8, 1, 8, 11, 3, 4, 5, 8, 9, 5, 11, 8, 11, 6, 10, 13, 8, 9, 11, 17, 13, 6, 14, 11, 21, 8, 15, 25, 13, 12, 17, 20, 22, 12, 18, 24, 22, 13, 27, 27]

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