A348025 - cp's OEIS frontend

A348025 The numbers visited on a square spiral when stepping to the smallest unvisited number that is not visible from and shares a divisor > 1 with the current number. Start with 1 and 11.

n	a(n)
1	1
2	11
3	55
4	15
5	21
6	3
7	9
8	27
9	30
10	2
11	6
12	14
13	16
14	10
15	4
16	8
17	12
18	18
19	20
20	32
21	34
22	28
23	22
24	24
25	26
26	36
27	33
28	39
29	42
30	38
31	40
32	46
33	44
34	48
35	45
36	5
37	25
38	65
39	13
40	91
41	7
42	35
43	49
44	105
45	51
46	17
47	153
48	57
49	19
50	114
51	50
52	52
53	54
54	56
55	66
56	68
57	62
58	58
59	29
60	87
61	84
62	60
63	63
64	69
65	23
66	161
67	77
68	99
69	93
70	31
71	124
72	70
73	72

[1, 11, 55, 15, 21, 3, 9, 27, 30, 2, 6, 14, 16, 10, 4, 8, 12, 18, 20, 32, 34, 28, 22, 24, 26, 36, 33, 39, 42, 38, 40, 46, 44, 48, 45, 5, 25, 65, 13, 91, 7, 35, 49, 105, 51, 17, 153, 57, 19, 114, 50, 52, 54, 56, 66, 68, 62, 58, 29, 87, 84, 60, 63, 69, 23, 161, 77, 99, 93, 31, 124, 70, 72]

cp's OEIS Frontend

A348025 The numbers visited on a square spiral when stepping to the smallest unvisited number that is not visible from and shares a divisor > 1 with the current number. Start with 1 and 11.

Table of values

List of values

n	a(n)
1	1
2	11
3	55
4	15
5	21
6	3
7	9
8	27
9	30
10	2
11	6
12	14
13	16
14	10
15	4
16	8
17	12
18	18
19	20
20	32
21	34
22	28
23	22
24	24
25	26
26	36
27	33
28	39
29	42
30	38
31	40
32	46
33	44
34	48
35	45
36	5
37	25
38	65
39	13
40	91
41	7
42	35
43	49
44	105
45	51
46	17
47	153
48	57
49	19
50	114
51	50
52	52
53	54
54	56
55	66
56	68
57	62
58	58
59	29
60	87
61	84
62	60
63	63
64	69
65	23
66	161
67	77
68	99
69	93
70	31
71	124
72	70
73	72

n	a(n)
1	1
2	11
3	55
4	15
5	21
6	3
7	9
8	27
9	30
10	2
11	6
12	14
13	16
14	10
15	4
16	8
17	12
18	18
19	20
20	32
21	34
22	28
23	22
24	24
25	26
26	36
27	33
28	39
29	42
30	38
31	40
32	46
33	44
34	48
35	45
36	5
37	25
38	65
39	13
40	91
41	7
42	35
43	49
44	105
45	51
46	17
47	153
48	57
49	19
50	114
51	50
52	52
53	54
54	56
55	66
56	68
57	62
58	58
59	29
60	87
61	84
62	60
63	63
64	69
65	23
66	161
67	77
68	99
69	93
70	31
71	124
72	70
73	72

n	a(n)
1	1
2	11
3	55
4	15
5	21
6	3
7	9
8	27
9	30
10	2
11	6
12	14
13	16
14	10
15	4
16	8
17	12
18	18
19	20
20	32
21	34
22	28
23	22
24	24
25	26
26	36
27	33
28	39
29	42
30	38
31	40
32	46
33	44
34	48
35	45
36	5
37	25
38	65
39	13
40	91
41	7
42	35
43	49
44	105
45	51
46	17
47	153
48	57
49	19
50	114
51	50
52	52
53	54
54	56
55	66
56	68
57	62
58	58
59	29
60	87
61	84
62	60
63	63
64	69
65	23
66	161
67	77
68	99
69	93
70	31
71	124
72	70
73	72