A330154 - cp's OEIS frontend

A330154 Each term is visited according to the rule: move left (resp. right) a(n) places if a(n) is prime (resp. not prime), starting at n = 1: lexicographically earliest such sequence of distinct positive integers.

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

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

cp's OEIS Frontend

A330154 Each term is visited according to the rule: move left (resp. right) a(n) places if a(n) is prime (resp. not prime), starting at n = 1: lexicographically earliest such sequence of distinct positive integers.

Table of values

List of values

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

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

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