A368122 - cp's OEIS frontend

A368122 a(n) is the x-coordinate of the n-th point in a square spiral mapped to a square grid rotated by Pi/4 using the symmetrized variant of the distance-limited strip bijection described in A368121.

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

[0, 1, 0, -1, -1, -1, 0, 1, 1, 2, 2, 1, 0, 0, -1, -2, -3, -2, -2, -1, 0, 0, 1, 2, 3, 3, 3, 2, 2, 1, 0, -1, -2, -2, -3, -3, -4, -3, -3, -2, -2, -1, 0, 1, 2, 2, 3, 3, 4, 5, 4, 4, 3, 2, 1, 1, 0, 0, -1, -2, -3, -4, -4, -5, -6, -5, -4, -4, -3, -2, -1, -1, 0, 0, 1, 2, 3, 4, 4, 5, 6, 6, 5, 5, 5, 4]

cp's OEIS Frontend

A368122 a(n) is the x-coordinate of the n-th point in a square spiral mapped to a square grid rotated by Pi/4 using the symmetrized variant of the distance-limited strip bijection described in A368121.

Table of values

List of values

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

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

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