A053457 - cp's OEIS frontend

A053457 Open disk numbers (version 2): a(n) is the number of points (i,j), i,j, integers, contained in an open disk of diameter n, centered at (0,1/2).

n	a(n)
0	0
1	0
2	2
3	6
4	12
5	16
6	26
7	38
8	48
9	60
10	78
11	94
12	108
13	128
14	154
15	174
16	196
17	224
18	250
19	278
20	312
21	344
22	378
23	410
24	452
25	484
26	526
27	574
28	612
29	652
30	698
31	754
32	800
33	848
34	906
35	958
36	1012
37	1068
38	1130
39	1190
40	1252
41	1316
42	1378
43	1446
44	1516
45	1588
46	1654
47	1730
48	1808
49	1880
50	1954

[0, 0, 2, 6, 12, 16, 26, 38, 48, 60, 78, 94, 108, 128, 154, 174, 196, 224, 250, 278, 312, 344, 378, 410, 452, 484, 526, 574, 612, 652, 698, 754, 800, 848, 906, 958, 1012, 1068, 1130, 1190, 1252, 1316, 1378, 1446, 1516, 1588, 1654, 1730, 1808, 1880, 1954]

cp's OEIS Frontend

A053457 Open disk numbers (version 2): a(n) is the number of points (i,j), i,j, integers, contained in an open disk of diameter n, centered at (0,1/2).

Table of values

List of values