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.

A375996 Number of integers y > 0 such that y < (n/2+x)*sqrt(3) and y < (n/2-x)*sqrt(3).

Table of values

n a(n)
1 0
2 1
3 2
4 5
5 8
6 13
7 18
8 24
9 31
10 38
11 47
12 56
13 67
14 78
15 90
16 103
17 116
18 131
19 146
20 163
21 180
22 199
23 217
24 238
25 257
26 280
27 301
28 326
29 349
30 375
31 400
32 427
33 454
34 483
35 512
36 543
37 574
38 606
39 639
40 672
41 707
42 742
43 779
44 816
45 854
46 893
47 932
48 973
49 1014
50 1057
51 1100
52 1145
53 1189
54 1236
55 1281

List of values

[0, 1, 2, 5, 8, 13, 18, 24, 31, 38, 47, 56, 67, 78, 90, 103, 116, 131, 146, 163, 180, 199, 217, 238, 257, 280, 301, 326, 349, 375, 400, 427, 454, 483, 512, 543, 574, 606, 639, 672, 707, 742, 779, 816, 854, 893, 932, 973, 1014, 1057, 1100, 1145, 1189, 1236, 1281]

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

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