A303642 - cp's OEIS frontend

A303642 a(n) is the number of lattice points in Cartesian grid between circle of radius n and its inscribed square. The sides of the square are parallel to coordinate axes.

n	a(n)
1	0
2	0
3	0
4	20
5	20
6	28
7	64
8	72
9	80
10	80
11	148
12	148
13	156
14	248
15	256
16	264
17	264
18	380
19	396
20	404
21	528
22	552
23	560
24	700
25	716
26	740
27	764
28	928
29	936
30	960
31	1148
32	1180
33	1196
34	1212
35	1440
36	1448
37	1472
38	1700
39	1740
40	1764
41	2000
42	2040
43	2064
44	2104
45	2380
46	2396
47	2428
48	2720
49	2760
50	2784
51	2832
52	3156

[0, 0, 0, 20, 20, 28, 64, 72, 80, 80, 148, 148, 156, 248, 256, 264, 264, 380, 396, 404, 528, 552, 560, 700, 716, 740, 764, 928, 936, 960, 1148, 1180, 1196, 1212, 1440, 1448, 1472, 1700, 1740, 1764, 2000, 2040, 2064, 2104, 2380, 2396, 2428, 2720, 2760, 2784, 2832, 3156]

cp's OEIS Frontend

A303642 a(n) is the number of lattice points in Cartesian grid between circle of radius n and its inscribed square. The sides of the square are parallel to coordinate axes.

Table of values

List of values