A359058 - cp's OEIS frontend

A359058 a(n) = squared distance to the origin of the n-th vertex on a counterclockwise undulating spiral in a square grid.

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

[0, 1, 2, 1, 4, 5, 2, 5, 4, 1, 2, 1, 4, 5, 2, 5, 4, 9, 10, 5, 8, 5, 10, 9, 16, 17, 10, 13, 8, 13, 10, 17, 16, 9, 10, 5, 8, 5, 10, 9, 16, 17, 10, 13, 8, 13, 10, 17, 16, 25, 26, 17, 20, 13, 18, 13, 20, 17, 26, 25, 36, 37, 26, 29, 20, 25, 18, 25, 20, 29, 26, 37, 36, 25, 26, 17, 20, 13, 18, 13, 20]

cp's OEIS Frontend

A359058 a(n) = squared distance to the origin of the n-th vertex on a counterclockwise undulating spiral in a square grid.

Table of values

List of values

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

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

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