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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.

A306674 Number of distinct non-similar obtuse triangles with integer sides and length of largest side <= n.

Table of values

n a(n)
1 0
2 0
3 1
4 2
5 5
6 9
7 14
8 21
9 31
10 44
11 59
12 76
13 98
14 123
15 153
16 186
17 224
18 266
19 314
20 368
21 426
22 491
23 562
24 638
25 723
26 815
27 915
28 1021
29 1135
30 1258
31 1388
32 1528
33 1677
34 1836
35 2006
36 2183
37 2372
38 2569
39 2780
40 3002
41 3233
42 3476
43 3731
44 4000
45 4282
46 4574
47 4880
48 5198
49 5531
50 5879

List of values

[0, 0, 1, 2, 5, 9, 14, 21, 31, 44, 59, 76, 98, 123, 153, 186, 224, 266, 314, 368, 426, 491, 562, 638, 723, 815, 915, 1021, 1135, 1258, 1388, 1528, 1677, 1836, 2006, 2183, 2372, 2569, 2780, 3002, 3233, 3476, 3731, 4000, 4282, 4574, 4880, 5198, 5531, 5879]

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

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