A347518 - cp's OEIS frontend

A347518 The numbers visited on a square spiral when starting at 1 and then stepping to the smallest unvisited number that is not visible from the current number and where the number is removed from the spiral once visited.

n	a(n)
1	1
2	11
3	6
4	14
5	2
6	16
7	7
8	9
9	17
10	13
11	10
12	20
13	18
14	3
15	5
16	12
17	22
18	24
19	21
20	25
21	19
22	33
23	31
24	26
25	28
26	30
27	27
28	35
29	32
30	36
31	47
32	39
33	29
34	37
35	40
36	42
37	38
38	43
39	45
40	48
41	44
42	49
43	41
44	52
45	50
46	53
47	55
48	51
49	56
50	66
51	54
52	63
53	57
54	59
55	61
56	4
57	23
58	15
59	46
60	34
61	77
62	73
63	65
64	58
65	62
66	90
67	64
68	106
69	74
70	76
71	79
72	75
73	80
74	82
75	78
76	95

[1, 11, 6, 14, 2, 16, 7, 9, 17, 13, 10, 20, 18, 3, 5, 12, 22, 24, 21, 25, 19, 33, 31, 26, 28, 30, 27, 35, 32, 36, 47, 39, 29, 37, 40, 42, 38, 43, 45, 48, 44, 49, 41, 52, 50, 53, 55, 51, 56, 66, 54, 63, 57, 59, 61, 4, 23, 15, 46, 34, 77, 73, 65, 58, 62, 90, 64, 106, 74, 76, 79, 75, 80, 82, 78, 95]

cp's OEIS Frontend

A347518 The numbers visited on a square spiral when starting at 1 and then stepping to the smallest unvisited number that is not visible from the current number and where the number is removed from the spiral once visited.

Table of values

List of values

n	a(n)
1	1
2	11
3	6
4	14
5	2
6	16
7	7
8	9
9	17
10	13
11	10
12	20
13	18
14	3
15	5
16	12
17	22
18	24
19	21
20	25
21	19
22	33
23	31
24	26
25	28
26	30
27	27
28	35
29	32
30	36
31	47
32	39
33	29
34	37
35	40
36	42
37	38
38	43
39	45
40	48
41	44
42	49
43	41
44	52
45	50
46	53
47	55
48	51
49	56
50	66
51	54
52	63
53	57
54	59
55	61
56	4
57	23
58	15
59	46
60	34
61	77
62	73
63	65
64	58
65	62
66	90
67	64
68	106
69	74
70	76
71	79
72	75
73	80
74	82
75	78
76	95

n	a(n)
1	1
2	11
3	6
4	14
5	2
6	16
7	7
8	9
9	17
10	13
11	10
12	20
13	18
14	3
15	5
16	12
17	22
18	24
19	21
20	25
21	19
22	33
23	31
24	26
25	28
26	30
27	27
28	35
29	32
30	36
31	47
32	39
33	29
34	37
35	40
36	42
37	38
38	43
39	45
40	48
41	44
42	49
43	41
44	52
45	50
46	53
47	55
48	51
49	56
50	66
51	54
52	63
53	57
54	59
55	61
56	4
57	23
58	15
59	46
60	34
61	77
62	73
63	65
64	58
65	62
66	90
67	64
68	106
69	74
70	76
71	79
72	75
73	80
74	82
75	78
76	95

n	a(n)
1	1
2	11
3	6
4	14
5	2
6	16
7	7
8	9
9	17
10	13
11	10
12	20
13	18
14	3
15	5
16	12
17	22
18	24
19	21
20	25
21	19
22	33
23	31
24	26
25	28
26	30
27	27
28	35
29	32
30	36
31	47
32	39
33	29
34	37
35	40
36	42
37	38
38	43
39	45
40	48
41	44
42	49
43	41
44	52
45	50
46	53
47	55
48	51
49	56
50	66
51	54
52	63
53	57
54	59
55	61
56	4
57	23
58	15
59	46
60	34
61	77
62	73
63	65
64	58
65	62
66	90
67	64
68	106
69	74
70	76
71	79
72	75
73	80
74	82
75	78
76	95