A283307 - cp's OEIS frontend

A283307 List points (x,y) having integer coordinates, sorted first by x^2+y^2 and in case of ties, by x-coordinate and then by y-coordinate. Sequence gives x-coordinates.

n	a(n)
1	0
2	-1
3	0
4	0
5	1
6	-1
7	-1
8	1
9	1
10	-2
11	0
12	0
13	2
14	-2
15	-2
16	-1
17	-1
18	1
19	1
20	2
21	2
22	-2
23	-2
24	2
25	2
26	-3
27	0
28	0
29	3
30	-3
31	-3
32	-1
33	-1
34	1
35	1
36	3
37	3
38	-3
39	-3
40	-2
41	-2
42	2
43	2
44	3
45	3
46	-4
47	0
48	0
49	4
50	-4
51	-4
52	-1
53	-1
54	1
55	1
56	4
57	4
58	-3
59	-3
60	3
61	3
62	-4
63	-4
64	-2
65	-2
66	2
67	2
68	4
69	4
70	-5
71	-4
72	-4
73	-3
74	-3
75	0
76	0
77	3
78	3
79	4
80	4
81	5
82	-5
83	-5
84	-1
85	-1
86	1

[0, -1, 0, 0, 1, -1, -1, 1, 1, -2, 0, 0, 2, -2, -2, -1, -1, 1, 1, 2, 2, -2, -2, 2, 2, -3, 0, 0, 3, -3, -3, -1, -1, 1, 1, 3, 3, -3, -3, -2, -2, 2, 2, 3, 3, -4, 0, 0, 4, -4, -4, -1, -1, 1, 1, 4, 4, -3, -3, 3, 3, -4, -4, -2, -2, 2, 2, 4, 4, -5, -4, -4, -3, -3, 0, 0, 3, 3, 4, 4, 5, -5, -5, -1, -1, 1]

cp's OEIS Frontend

A283307 List points (x,y) having integer coordinates, sorted first by x^2+y^2 and in case of ties, by x-coordinate and then by y-coordinate. Sequence gives x-coordinates.

Table of values

List of values

n	a(n)
1	0
2	-1
3	0
4	0
5	1
6	-1
7	-1
8	1
9	1
10	-2
11	0
12	0
13	2
14	-2
15	-2
16	-1
17	-1
18	1
19	1
20	2
21	2
22	-2
23	-2
24	2
25	2
26	-3
27	0
28	0
29	3
30	-3
31	-3
32	-1
33	-1
34	1
35	1
36	3
37	3
38	-3
39	-3
40	-2
41	-2
42	2
43	2
44	3
45	3
46	-4
47	0
48	0
49	4
50	-4
51	-4
52	-1
53	-1
54	1
55	1
56	4
57	4
58	-3
59	-3
60	3
61	3
62	-4
63	-4
64	-2
65	-2
66	2
67	2
68	4
69	4
70	-5
71	-4
72	-4
73	-3
74	-3
75	0
76	0
77	3
78	3
79	4
80	4
81	5
82	-5
83	-5
84	-1
85	-1
86	1

n	a(n)
1	0
2	-1
3	0
4	0
5	1
6	-1
7	-1
8	1
9	1
10	-2
11	0
12	0
13	2
14	-2
15	-2
16	-1
17	-1
18	1
19	1
20	2
21	2
22	-2
23	-2
24	2
25	2
26	-3
27	0
28	0
29	3
30	-3
31	-3
32	-1
33	-1
34	1
35	1
36	3
37	3
38	-3
39	-3
40	-2
41	-2
42	2
43	2
44	3
45	3
46	-4
47	0
48	0
49	4
50	-4
51	-4
52	-1
53	-1
54	1
55	1
56	4
57	4
58	-3
59	-3
60	3
61	3
62	-4
63	-4
64	-2
65	-2
66	2
67	2
68	4
69	4
70	-5
71	-4
72	-4
73	-3
74	-3
75	0
76	0
77	3
78	3
79	4
80	4
81	5
82	-5
83	-5
84	-1
85	-1
86	1

n	a(n)
1	0
2	-1
3	0
4	0
5	1
6	-1
7	-1
8	1
9	1
10	-2
11	0
12	0
13	2
14	-2
15	-2
16	-1
17	-1
18	1
19	1
20	2
21	2
22	-2
23	-2
24	2
25	2
26	-3
27	0
28	0
29	3
30	-3
31	-3
32	-1
33	-1
34	1
35	1
36	3
37	3
38	-3
39	-3
40	-2
41	-2
42	2
43	2
44	3
45	3
46	-4
47	0
48	0
49	4
50	-4
51	-4
52	-1
53	-1
54	1
55	1
56	4
57	4
58	-3
59	-3
60	3
61	3
62	-4
63	-4
64	-2
65	-2
66	2
67	2
68	4
69	4
70	-5
71	-4
72	-4
73	-3
74	-3
75	0
76	0
77	3
78	3
79	4
80	4
81	5
82	-5
83	-5
84	-1
85	-1
86	1