A265359 - cp's OEIS frontend

A265359 Spiralwise distance to the nearest inner neighbor in Ulam-style square-spirals using zero-based indexing: a(0) = 0, for n >= 1, a(n) = n - A265409(n).

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

[0, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 9, 10, 11, 11, 11, 12, 13, 13, 13, 14, 15, 15, 15, 15, 16, 17, 17, 17, 17, 18, 19, 19, 19, 19, 19, 20, 21, 21, 21, 21, 21, 22, 23, 23, 23, 23, 23, 23, 24, 25, 25, 25, 25, 25, 25, 26, 27, 27, 27, 27, 27, 27, 27, 28, 29, 29, 29, 29, 29, 29, 29, 30, 31, 31, 31, 31, 31, 31, 31, 31, 32]

cp's OEIS Frontend

A265359 Spiralwise distance to the nearest inner neighbor in Ulam-style square-spirals using zero-based indexing: a(0) = 0, for n >= 1, a(n) = n - A265409(n).

Table of values

List of values

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

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

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