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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.

A136483 Number of unit square lattice cells inside quadrant of origin-centered circle of diameter n.

Table of values

n a(n)
1 0
2 0
3 1
4 1
5 3
6 4
7 6
8 8
9 13
10 15
11 19
12 22
13 28
14 30
15 37
16 41
17 48
18 54
19 64
20 69
21 77
22 83
23 94
24 98
25 110
26 119
27 131
28 139
29 152
30 162
31 172
32 183
33 199
34 208
35 226
36 234
37 253
38 263
39 281
40 294
41 308
42 322
43 343
44 357
45 377
46 390
47 412
48 424
49 447
50 465
51 488
52 504
53 528
54 545
55 567
56 585
57 612
58 628
59 654

List of values

[0, 0, 1, 1, 3, 4, 6, 8, 13, 15, 19, 22, 28, 30, 37, 41, 48, 54, 64, 69, 77, 83, 94, 98, 110, 119, 131, 139, 152, 162, 172, 183, 199, 208, 226, 234, 253, 263, 281, 294, 308, 322, 343, 357, 377, 390, 412, 424, 447, 465, 488, 504, 528, 545, 567, 585, 612, 628, 654]

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

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