A123690 - cp's OEIS frontend

A123690 Number of points in a square lattice covered by a circle of diameter n if the center of the circle is chosen such that the circle covers the maximum possible number of lattice points.

n	a(n)
1	2
2	5
3	9
4	14
5	22
6	32
7	41
8	52
9	69
10	81
11	97
12	116
13	137
14	157
15	180
16	208
17	231
18	258
19	293
20	319
21	351
22	384
23	421
24	457
25	495
26	540
27	578
28	623
29	667
30	716
31	761
32	812
33	861
34	914
35	973
36	1025
37	1085
38	1142
39	1201
40	1268
41	1328
42	1396
43	1460
44	1528
45	1597
46	1669
47	1745
48	1816
49	1893
50	1976
51	2053

[2, 5, 9, 14, 22, 32, 41, 52, 69, 81, 97, 116, 137, 157, 180, 208, 231, 258, 293, 319, 351, 384, 421, 457, 495, 540, 578, 623, 667, 716, 761, 812, 861, 914, 973, 1025, 1085, 1142, 1201, 1268, 1328, 1396, 1460, 1528, 1597, 1669, 1745, 1816, 1893, 1976, 2053]

cp's OEIS Frontend

A123690 Number of points in a square lattice covered by a circle of diameter n if the center of the circle is chosen such that the circle covers the maximum possible number of lattice points.

Table of values

List of values