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.

A229904 Number of additional unit squares completely encircled in the first quadrant of a Cartesian grid by a circle centered at the origin as the radius squared increases from one sum of two square integers to the next larger sum of two square integers.

Table of values

n a(n)
1 1
2 2
3 1
4 2
5 2
6 2
7 1
8 2
9 2
10 2
11 2
12 1
13 2
14 2
15 2
16 2
17 2
18 3
19 2
20 2
21 2
22 2
23 4
24 2
25 1
26 2
27 2
28 2
29 2
30 4
31 2
32 2
33 2
34 1
35 2
36 2
37 2
38 2
39 2
40 2
41 2
42 2
43 2
44 4
45 1
46 4
47 2
48 2
49 4
50 2
51 2
52 2
53 2
54 2
55 2
56 1
57 2
58 2
59 4
60 2
61 2
62 2
63 2

List of values

[1, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 4, 2, 1, 2, 2, 2, 2, 4, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 4, 1, 4, 2, 2, 4, 2, 2, 2, 2, 2, 2, 1, 2, 2, 4, 2, 2, 2, 2]