A136513 - cp's OEIS frontend

A136513 Number of unit square lattice cells inside half-plane (two adjacent quadrants) of origin centered circle of diameter n.

n	a(n)
1	0
2	0
3	2
4	2
5	6
6	8
7	12
8	16
9	26
10	30
11	38
12	44
13	56
14	60
15	74
16	82
17	96
18	108
19	128
20	138
21	154
22	166
23	188
24	196
25	220
26	238
27	262
28	278
29	304
30	324
31	344
32	366
33	398
34	416
35	452
36	468
37	506
38	526
39	562
40	588
41	616
42	644
43	686
44	714
45	754
46	780
47	824
48	848
49	894
50	930
51	976
52	1008
53	1056
54	1090
55	1134
56	1170

[0, 0, 2, 2, 6, 8, 12, 16, 26, 30, 38, 44, 56, 60, 74, 82, 96, 108, 128, 138, 154, 166, 188, 196, 220, 238, 262, 278, 304, 324, 344, 366, 398, 416, 452, 468, 506, 526, 562, 588, 616, 644, 686, 714, 754, 780, 824, 848, 894, 930, 976, 1008, 1056, 1090, 1134, 1170]

cp's OEIS Frontend

A136513 Number of unit square lattice cells inside half-plane (two adjacent quadrants) of origin centered circle of diameter n.

Table of values

List of values