A238757 - cp's OEIS frontend

A238757 Lexicographically earliest sequence of distinct positive integers such that for any n>0 we have (a(n) AND n) = 0 (where AND stands for the bitwise AND operator).

n	a(n)
1	2
2	1
3	4
4	3
5	8
6	9
7	16
8	5
9	6
10	17
11	20
12	18
13	32
14	33
15	48
16	7
17	10
18	12
19	36
20	11
21	34
22	40
23	64
24	35
25	38
26	37
27	68
28	65
29	66
30	96
31	128
32	13
33	14
34	21
35	24
36	19
37	26
38	25
39	72
40	22
41	70
42	69
43	80
44	67
45	82
46	81
47	144
48	15
49	74
50	73
51	76
52	75
53	130
54	129
55	136
56	71
57	132
58	133
59	192
60	131
61	194
62	193
63	256
64	23

[2, 1, 4, 3, 8, 9, 16, 5, 6, 17, 20, 18, 32, 33, 48, 7, 10, 12, 36, 11, 34, 40, 64, 35, 38, 37, 68, 65, 66, 96, 128, 13, 14, 21, 24, 19, 26, 25, 72, 22, 70, 69, 80, 67, 82, 81, 144, 15, 74, 73, 76, 75, 130, 129, 136, 71, 132, 133, 192, 131, 194, 193, 256, 23]

cp's OEIS Frontend

A238757 Lexicographically earliest sequence of distinct positive integers such that for any n>0 we have (a(n) AND n) = 0 (where AND stands for the bitwise AND operator).

Table of values

List of values

n	a(n)
1	2
2	1
3	4
4	3
5	8
6	9
7	16
8	5
9	6
10	17
11	20
12	18
13	32
14	33
15	48
16	7
17	10
18	12
19	36
20	11
21	34
22	40
23	64
24	35
25	38
26	37
27	68
28	65
29	66
30	96
31	128
32	13
33	14
34	21
35	24
36	19
37	26
38	25
39	72
40	22
41	70
42	69
43	80
44	67
45	82
46	81
47	144
48	15
49	74
50	73
51	76
52	75
53	130
54	129
55	136
56	71
57	132
58	133
59	192
60	131
61	194
62	193
63	256
64	23

n	a(n)
1	2
2	1
3	4
4	3
5	8
6	9
7	16
8	5
9	6
10	17
11	20
12	18
13	32
14	33
15	48
16	7
17	10
18	12
19	36
20	11
21	34
22	40
23	64
24	35
25	38
26	37
27	68
28	65
29	66
30	96
31	128
32	13
33	14
34	21
35	24
36	19
37	26
38	25
39	72
40	22
41	70
42	69
43	80
44	67
45	82
46	81
47	144
48	15
49	74
50	73
51	76
52	75
53	130
54	129
55	136
56	71
57	132
58	133
59	192
60	131
61	194
62	193
63	256
64	23

n	a(n)
1	2
2	1
3	4
4	3
5	8
6	9
7	16
8	5
9	6
10	17
11	20
12	18
13	32
14	33
15	48
16	7
17	10
18	12
19	36
20	11
21	34
22	40
23	64
24	35
25	38
26	37
27	68
28	65
29	66
30	96
31	128
32	13
33	14
34	21
35	24
36	19
37	26
38	25
39	72
40	22
41	70
42	69
43	80
44	67
45	82
46	81
47	144
48	15
49	74
50	73
51	76
52	75
53	130
54	129
55	136
56	71
57	132
58	133
59	192
60	131
61	194
62	193
63	256
64	23