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.

A247586 Number of acute triangles with integer sides less than or equal to n.

Table of values

n a(n)
1 1
2 3
3 6
4 11
5 17
6 25
7 36
8 49
9 64
10 81
11 102
12 127
13 154
14 185
15 219
16 258
17 301
18 349
19 401
20 457
21 520
22 587
23 660
24 740
25 824
26 914
27 1010
28 1114
29 1225
30 1342
31 1468
32 1600
33 1740
34 1887
35 2041
36 2206
37 2378
38 2561
39 2750
40 2948

List of values

[1, 3, 6, 11, 17, 25, 36, 49, 64, 81, 102, 127, 154, 185, 219, 258, 301, 349, 401, 457, 520, 587, 660, 740, 824, 914, 1010, 1114, 1225, 1342, 1468, 1600, 1740, 1887, 2041, 2206, 2378, 2561, 2750, 2948]

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

Content is available under The OEIS End-User License Agreement.