A035327 - cp's OEIS frontend

A035327 Write n in binary, interchange 0's and 1's, convert back to decimal.

n	a(n)
0	1
1	0
2	1
3	0
4	3
5	2
6	1
7	0
8	7
9	6
10	5
11	4
12	3
13	2
14	1
15	0
16	15
17	14
18	13
19	12
20	11
21	10
22	9
23	8
24	7
25	6
26	5
27	4
28	3
29	2
30	1
31	0
32	31
33	30
34	29
35	28
36	27
37	26
38	25
39	24
40	23
41	22
42	21
43	20
44	19
45	18
46	17
47	16
48	15
49	14
50	13
51	12
52	11
53	10
54	9
55	8
56	7
57	6
58	5
59	4
60	3
61	2
62	1
63	0
64	63
65	62
66	61
67	60
68	59
69	58
70	57
71	56
72	55
73	54
74	53
75	52
76	51
77	50
78	49
79	48
80	47
81	46

[1, 0, 1, 0, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46]

cp's OEIS Frontend

A035327 Write n in binary, interchange 0's and 1's, convert back to decimal.

Table of values

List of values

n	a(n)
0	1
1	0
2	1
3	0
4	3
5	2
6	1
7	0
8	7
9	6
10	5
11	4
12	3
13	2
14	1
15	0
16	15
17	14
18	13
19	12
20	11
21	10
22	9
23	8
24	7
25	6
26	5
27	4
28	3
29	2
30	1
31	0
32	31
33	30
34	29
35	28
36	27
37	26
38	25
39	24
40	23
41	22
42	21
43	20
44	19
45	18
46	17
47	16
48	15
49	14
50	13
51	12
52	11
53	10
54	9
55	8
56	7
57	6
58	5
59	4
60	3
61	2
62	1
63	0
64	63
65	62
66	61
67	60
68	59
69	58
70	57
71	56
72	55
73	54
74	53
75	52
76	51
77	50
78	49
79	48
80	47
81	46

n	a(n)
0	1
1	0
2	1
3	0
4	3
5	2
6	1
7	0
8	7
9	6
10	5
11	4
12	3
13	2
14	1
15	0
16	15
17	14
18	13
19	12
20	11
21	10
22	9
23	8
24	7
25	6
26	5
27	4
28	3
29	2
30	1
31	0
32	31
33	30
34	29
35	28
36	27
37	26
38	25
39	24
40	23
41	22
42	21
43	20
44	19
45	18
46	17
47	16
48	15
49	14
50	13
51	12
52	11
53	10
54	9
55	8
56	7
57	6
58	5
59	4
60	3
61	2
62	1
63	0
64	63
65	62
66	61
67	60
68	59
69	58
70	57
71	56
72	55
73	54
74	53
75	52
76	51
77	50
78	49
79	48
80	47
81	46

n	a(n)
0	1
1	0
2	1
3	0
4	3
5	2
6	1
7	0
8	7
9	6
10	5
11	4
12	3
13	2
14	1
15	0
16	15
17	14
18	13
19	12
20	11
21	10
22	9
23	8
24	7
25	6
26	5
27	4
28	3
29	2
30	1
31	0
32	31
33	30
34	29
35	28
36	27
37	26
38	25
39	24
40	23
41	22
42	21
43	20
44	19
45	18
46	17
47	16
48	15
49	14
50	13
51	12
52	11
53	10
54	9
55	8
56	7
57	6
58	5
59	4
60	3
61	2
62	1
63	0
64	63
65	62
66	61
67	60
68	59
69	58
70	57
71	56
72	55
73	54
74	53
75	52
76	51
77	50
78	49
79	48
80	47
81	46