A281795 - cp's OEIS frontend

A281795 Number of unit squares (partially) covered by a disk of radius n centered at the origin.

n	a(n)
0	0
1	4
2	16
3	36
4	60
5	88
6	132
7	172
8	224
9	284
10	344
11	416
12	484
13	568
14	664
15	756
16	856
17	956
18	1076
19	1200
20	1324
21	1452
22	1600
23	1740
24	1884
25	2040
26	2212
27	2392
28	2560
29	2732
30	2928
31	3120
32	3332
33	3536
34	3748
35	3980
36	4192
37	4428
38	4660
39	4920
40	5172
41	5412
42	5688
43	5956
44	6248
45	6528
46	6804
47	7104
48	7400
49	7716

[0, 4, 16, 36, 60, 88, 132, 172, 224, 284, 344, 416, 484, 568, 664, 756, 856, 956, 1076, 1200, 1324, 1452, 1600, 1740, 1884, 2040, 2212, 2392, 2560, 2732, 2928, 3120, 3332, 3536, 3748, 3980, 4192, 4428, 4660, 4920, 5172, 5412, 5688, 5956, 6248, 6528, 6804, 7104, 7400, 7716]

cp's OEIS Frontend

A281795 Number of unit squares (partially) covered by a disk of radius n centered at the origin.

Table of values

List of values