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.

A057672 a(n) equals floor(As(n) - Ac(n)), where As(n) is the area of the square with side length n and Ac(n) is the area of the circle of diameter n.

Table of values

n a(n)
1 0
2 0
3 1
4 3
5 5
6 7
7 10
8 13
9 17
10 21
11 25
12 30
13 36
14 42
15 48
16 54
17 62
18 69
19 77
20 85
21 94
22 103
23 113
24 123
25 134
26 145
27 156
28 168
29 180
30 193
31 206
32 219
33 233
34 248
35 262
36 278
37 293
38 309
39 326
40 343
41 360
42 378
43 396
44 415
45 434
46 454
47 474
48 494
49 515
50 536
51 558
52 580
53 602
54 625
55 649
56 672
57 697
58 721
59 747
60 772
61 798

List of values

[0, 0, 1, 3, 5, 7, 10, 13, 17, 21, 25, 30, 36, 42, 48, 54, 62, 69, 77, 85, 94, 103, 113, 123, 134, 145, 156, 168, 180, 193, 206, 219, 233, 248, 262, 278, 293, 309, 326, 343, 360, 378, 396, 415, 434, 454, 474, 494, 515, 536, 558, 580, 602, 625, 649, 672, 697, 721, 747, 772, 798]

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

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