A324480 - cp's OEIS frontend

A324480 Consider the numbers on the x-axis in the spiral shown in A274641; a(n) is the distance from n to the origin, or -1 if n never appears on the x-axis.

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

[0, 1, 1, 2, 2, 3, 4, 3, 7, 6, 4, 5, 8, 10, 5, 6, 7, 11, 8, 12, 14, 10, 18, 9, 9, 13, 12, 20, 21, 24, 11, 22, 13, 14, 16, 17, 15, 15, 17, 18, 19, 36, 16, 23, 26, 23, 21, 27, 19, 27, 28, 20, 22, 25, 24, 43, 29, 47, 50, 25, 26, 37, 43, 49, 34, 28, 42, 52, 53, 30, 30]

cp's OEIS Frontend

A324480 Consider the numbers on the x-axis in the spiral shown in A274641; a(n) is the distance from n to the origin, or -1 if n never appears on the x-axis.

Table of values

List of values

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

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

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