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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.

A136485 Number of unit square lattice cells enclosed by origin centered circle of diameter n.

Table of values

n a(n)
1 0
2 0
3 4
4 4
5 12
6 16
7 24
8 32
9 52
10 60
11 76
12 88
13 112
14 120
15 148
16 164
17 192
18 216
19 256
20 276
21 308
22 332
23 376
24 392
25 440
26 476
27 524
28 556
29 608
30 648
31 688
32 732
33 796
34 832
35 904
36 936
37 1012
38 1052
39 1124
40 1176
41 1232
42 1288
43 1372
44 1428
45 1508
46 1560
47 1648
48 1696
49 1788
50 1860
51 1952
52 2016

List of values

[0, 0, 4, 4, 12, 16, 24, 32, 52, 60, 76, 88, 112, 120, 148, 164, 192, 216, 256, 276, 308, 332, 376, 392, 440, 476, 524, 556, 608, 648, 688, 732, 796, 832, 904, 936, 1012, 1052, 1124, 1176, 1232, 1288, 1372, 1428, 1508, 1560, 1648, 1696, 1788, 1860, 1952, 2016]

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

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