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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.

A245676 Number of convex polyaboloes (or convex polytans): number of distinct convex shapes that can be formed with n congruent isosceles right triangles. Reflections are not counted as different.

Table of values

n a(n)
1 1
2 3
3 2
4 6
5 3
6 7
7 5
8 11
9 5
10 10
11 7
12 14
13 7
14 16
15 11
16 20
17 9
18 17
19 13
20 22
21 12
22 25
23 18
24 27
25 14
26 24
27 20
28 31
29 18
30 36
31 26
32 37
33 19
34 34
35 28
36 38
37 24
38 45
39 34
40 47
41 26
42 41
43 36
44 49
45 35
46 61
47 44
48 54
49 32
50 54
51 45
52 56
53 40
54 71
55 56
56 63
57 40
58 66
59 56
60 72
61 49
62 86
63 66
64 76
65 51
66 74
67 67
68 77

List of values

[1, 3, 2, 6, 3, 7, 5, 11, 5, 10, 7, 14, 7, 16, 11, 20, 9, 17, 13, 22, 12, 25, 18, 27, 14, 24, 20, 31, 18, 36, 26, 37, 19, 34, 28, 38, 24, 45, 34, 47, 26, 41, 36, 49, 35, 61, 44, 54, 32, 54, 45, 56, 40, 71, 56, 63, 40, 66, 56, 72, 49, 86, 66, 76, 51, 74, 67, 77]

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

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