A279125 - cp's OEIS frontend

A279125 Lexicographically earliest sequence such that, for any distinct i and j, a(i)=a(j) implies (i AND j)=0 (where AND stands for the bitwise AND operator).

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	3
7	4
8	0
9	3
10	2
11	5
12	1
13	6
14	7
15	8
16	0
17	7
18	6
19	9
20	5
21	10
22	11
23	12
24	4
25	13
26	14
27	15
28	16
29	17
30	18
31	19
32	0
33	11
34	10
35	16
36	9
37	14
38	13
39	20
40	12
41	21
42	22
43	23
44	24
45	25
46	26
47	27
48	1
49	28
50	29
51	30
52	31
53	32
54	33
55	34
56	35
57	36
58	37
59	38
60	39
61	40
62	41
63	42
64	0
65	18
66	17
67	24
68	15
69	22
70	21
71	35
72	9

[0, 0, 1, 0, 2, 3, 4, 0, 3, 2, 5, 1, 6, 7, 8, 0, 7, 6, 9, 5, 10, 11, 12, 4, 13, 14, 15, 16, 17, 18, 19, 0, 11, 10, 16, 9, 14, 13, 20, 12, 21, 22, 23, 24, 25, 26, 27, 1, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 0, 18, 17, 24, 15, 22, 21, 35, 9]

cp's OEIS Frontend

A279125 Lexicographically earliest sequence such that, for any distinct i and j, a(i)=a(j) implies (i AND j)=0 (where AND stands for the bitwise AND operator).

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	3
7	4
8	0
9	3
10	2
11	5
12	1
13	6
14	7
15	8
16	0
17	7
18	6
19	9
20	5
21	10
22	11
23	12
24	4
25	13
26	14
27	15
28	16
29	17
30	18
31	19
32	0
33	11
34	10
35	16
36	9
37	14
38	13
39	20
40	12
41	21
42	22
43	23
44	24
45	25
46	26
47	27
48	1
49	28
50	29
51	30
52	31
53	32
54	33
55	34
56	35
57	36
58	37
59	38
60	39
61	40
62	41
63	42
64	0
65	18
66	17
67	24
68	15
69	22
70	21
71	35
72	9

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	3
7	4
8	0
9	3
10	2
11	5
12	1
13	6
14	7
15	8
16	0
17	7
18	6
19	9
20	5
21	10
22	11
23	12
24	4
25	13
26	14
27	15
28	16
29	17
30	18
31	19
32	0
33	11
34	10
35	16
36	9
37	14
38	13
39	20
40	12
41	21
42	22
43	23
44	24
45	25
46	26
47	27
48	1
49	28
50	29
51	30
52	31
53	32
54	33
55	34
56	35
57	36
58	37
59	38
60	39
61	40
62	41
63	42
64	0
65	18
66	17
67	24
68	15
69	22
70	21
71	35
72	9

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	3
7	4
8	0
9	3
10	2
11	5
12	1
13	6
14	7
15	8
16	0
17	7
18	6
19	9
20	5
21	10
22	11
23	12
24	4
25	13
26	14
27	15
28	16
29	17
30	18
31	19
32	0
33	11
34	10
35	16
36	9
37	14
38	13
39	20
40	12
41	21
42	22
43	23
44	24
45	25
46	26
47	27
48	1
49	28
50	29
51	30
52	31
53	32
54	33
55	34
56	35
57	36
58	37
59	38
60	39
61	40
62	41
63	42
64	0
65	18
66	17
67	24
68	15
69	22
70	21
71	35
72	9