A308334 - cp's OEIS frontend

A308334 Lexicographically earliest sequence of distinct positive numbers such that for any n > 0, a(n) OR a(n+1) is a prime number (where OR denotes the bitwise OR operator).

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

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

cp's OEIS Frontend

A308334 Lexicographically earliest sequence of distinct positive numbers such that for any n > 0, a(n) OR a(n+1) is a prime number (where OR denotes the bitwise OR operator).

Table of values

List of values

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

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

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