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.

A247589 Number of integer-sided obtuse triangles with largest side n.

Table of values

n a(n)
1 0
2 0
3 1
4 1
5 2
6 4
7 5
8 7
9 10
10 12
11 15
12 17
13 21
14 25
15 29
16 33
17 37
18 42
19 48
20 53
21 58
22 65
23 71
24 76
25 83
26 91
27 100
28 106
29 113
30 122
31 130
32 140
33 149
34 158
35 169
36 177
37 188
38 197
39 210
40 221
41 230
42 243
43 255
44 269
45 281
46 292
47 306
48 318
49 333
50 346

List of values

[0, 0, 1, 1, 2, 4, 5, 7, 10, 12, 15, 17, 21, 25, 29, 33, 37, 42, 48, 53, 58, 65, 71, 76, 83, 91, 100, 106, 113, 122, 130, 140, 149, 158, 169, 177, 188, 197, 210, 221, 230, 243, 255, 269, 281, 292, 306, 318, 333, 346]