A261849 - cp's OEIS frontend

A261849 Number of squares in an n X n grid that are enclosed in a circle of diameter n (having the same center as the grid).

n	a(n)
1	0
2	0
3	1
4	4
5	9
6	16
7	21
8	32
9	45
10	60
11	69
12	88
13	101
14	120
15	145
16	164
17	185
18	216
19	241
20	276
21	293
22	332
23	365
24	392
25	437
26	476
27	509
28	556
29	593
30	648
31	681
32	732
33	785
34	832
35	885
36	936
37	989
38	1052
39	1109
40	1176
41	1225
42	1288
43	1353
44	1428
45	1489
46	1560
47	1625
48	1696
49	1781
50	1860
51	1933
52	2016
53	2085
54	2180
55	2241
56	2340
57	2425
58	2512
59	2609
60	2700
61	2793
62	2876
63	2973
64	3080
65	3173

[0, 0, 1, 4, 9, 16, 21, 32, 45, 60, 69, 88, 101, 120, 145, 164, 185, 216, 241, 276, 293, 332, 365, 392, 437, 476, 509, 556, 593, 648, 681, 732, 785, 832, 885, 936, 989, 1052, 1109, 1176, 1225, 1288, 1353, 1428, 1489, 1560, 1625, 1696, 1781, 1860, 1933, 2016, 2085, 2180, 2241, 2340, 2425, 2512, 2609, 2700, 2793, 2876, 2973, 3080, 3173]

cp's OEIS Frontend

A261849 Number of squares in an n X n grid that are enclosed in a circle of diameter n (having the same center as the grid).

Table of values

List of values