A053411 - cp's OEIS frontend

A053411 Circle numbers (version 1): a(n)= number of points (i,j), i,j integers, contained in a circle of diameter n, centered at the origin.

n	a(n)
0	1
1	1
2	5
3	9
4	13
5	21
6	29
7	37
8	49
9	69
10	81
11	97
12	113
13	137
14	149
15	177
16	197
17	225
18	253
19	293
20	317
21	349
22	377
23	421
24	441
25	489
26	529
27	577
28	613
29	665
30	709
31	749
32	797
33	861
34	901
35	973
36	1009
37	1085
38	1129
39	1201
40	1257
41	1313
42	1373
43	1457
44	1517
45	1597
46	1653
47	1741
48	1793
49	1885
50	1961

[1, 1, 5, 9, 13, 21, 29, 37, 49, 69, 81, 97, 113, 137, 149, 177, 197, 225, 253, 293, 317, 349, 377, 421, 441, 489, 529, 577, 613, 665, 709, 749, 797, 861, 901, 973, 1009, 1085, 1129, 1201, 1257, 1313, 1373, 1457, 1517, 1597, 1653, 1741, 1793, 1885, 1961]

cp's OEIS Frontend

A053411 Circle numbers (version 1): a(n)= number of points (i,j), i,j integers, contained in a circle of diameter n, centered at the origin.

Table of values

List of values