A144078 - cp's OEIS frontend

A144078 a(n) = the number of digits in the binary representation of n that differ from the corresponding digit in the binary reversal of n. (I.e., a(n) = number of 1's in n XOR A030101(n).)

n	a(n)
1	0
2	2
3	0
4	2
5	0
6	2
7	0
8	2
9	0
10	4
11	2
12	4
13	2
14	2
15	0
16	2
17	0
18	4
19	2
20	2
21	0
22	4
23	2
24	4
25	2
26	2
27	0
28	4
29	2
30	2
31	0
32	2
33	0
34	4
35	2
36	4
37	2
38	6
39	4
40	4
41	2
42	6
43	4
44	2
45	0
46	4
47	2
48	4
49	2
50	2
51	0
52	6
53	4
54	4
55	2
56	6
57	4
58	4
59	2
60	4
61	2
62	2
63	0
64	2
65	0
66	4
67	2
68	4
69	2
70	6
71	4
72	2
73	0
74	4
75	2
76	4
77	2
78	6
79	4
80	4
81	2
82	6
83	4
84	2
85	0
86	4
87	2
88	4
89	2
90	6
91	4
92	2
93	0
94	4
95	2
96	4
97	2
98	2
99	0
100	6
101	4
102	4
103	2
104	4
105	2

[0, 2, 0, 2, 0, 2, 0, 2, 0, 4, 2, 4, 2, 2, 0, 2, 0, 4, 2, 2, 0, 4, 2, 4, 2, 2, 0, 4, 2, 2, 0, 2, 0, 4, 2, 4, 2, 6, 4, 4, 2, 6, 4, 2, 0, 4, 2, 4, 2, 2, 0, 6, 4, 4, 2, 6, 4, 4, 2, 4, 2, 2, 0, 2, 0, 4, 2, 4, 2, 6, 4, 2, 0, 4, 2, 4, 2, 6, 4, 4, 2, 6, 4, 2, 0, 4, 2, 4, 2, 6, 4, 2, 0, 4, 2, 4, 2, 2, 0, 6, 4, 4, 2, 4, 2]

cp's OEIS Frontend

A144078 a(n) = the number of digits in the binary representation of n that differ from the corresponding digit in the binary reversal of n. (I.e., a(n) = number of 1's in n XOR A030101(n).)

Table of values

List of values

n	a(n)
1	0
2	2
3	0
4	2
5	0
6	2
7	0
8	2
9	0
10	4
11	2
12	4
13	2
14	2
15	0
16	2
17	0
18	4
19	2
20	2
21	0
22	4
23	2
24	4
25	2
26	2
27	0
28	4
29	2
30	2
31	0
32	2
33	0
34	4
35	2
36	4
37	2
38	6
39	4
40	4
41	2
42	6
43	4
44	2
45	0
46	4
47	2
48	4
49	2
50	2
51	0
52	6
53	4
54	4
55	2
56	6
57	4
58	4
59	2
60	4
61	2
62	2
63	0
64	2
65	0
66	4
67	2
68	4
69	2
70	6
71	4
72	2
73	0
74	4
75	2
76	4
77	2
78	6
79	4
80	4
81	2
82	6
83	4
84	2
85	0
86	4
87	2
88	4
89	2
90	6
91	4
92	2
93	0
94	4
95	2
96	4
97	2
98	2
99	0
100	6
101	4
102	4
103	2
104	4
105	2

n	a(n)
1	0
2	2
3	0
4	2
5	0
6	2
7	0
8	2
9	0
10	4
11	2
12	4
13	2
14	2
15	0
16	2
17	0
18	4
19	2
20	2
21	0
22	4
23	2
24	4
25	2
26	2
27	0
28	4
29	2
30	2
31	0
32	2
33	0
34	4
35	2
36	4
37	2
38	6
39	4
40	4
41	2
42	6
43	4
44	2
45	0
46	4
47	2
48	4
49	2
50	2
51	0
52	6
53	4
54	4
55	2
56	6
57	4
58	4
59	2
60	4
61	2
62	2
63	0
64	2
65	0
66	4
67	2
68	4
69	2
70	6
71	4
72	2
73	0
74	4
75	2
76	4
77	2
78	6
79	4
80	4
81	2
82	6
83	4
84	2
85	0
86	4
87	2
88	4
89	2
90	6
91	4
92	2
93	0
94	4
95	2
96	4
97	2
98	2
99	0
100	6
101	4
102	4
103	2
104	4
105	2

n	a(n)
1	0
2	2
3	0
4	2
5	0
6	2
7	0
8	2
9	0
10	4
11	2
12	4
13	2
14	2
15	0
16	2
17	0
18	4
19	2
20	2
21	0
22	4
23	2
24	4
25	2
26	2
27	0
28	4
29	2
30	2
31	0
32	2
33	0
34	4
35	2
36	4
37	2
38	6
39	4
40	4
41	2
42	6
43	4
44	2
45	0
46	4
47	2
48	4
49	2
50	2
51	0
52	6
53	4
54	4
55	2
56	6
57	4
58	4
59	2
60	4
61	2
62	2
63	0
64	2
65	0
66	4
67	2
68	4
69	2
70	6
71	4
72	2
73	0
74	4
75	2
76	4
77	2
78	6
79	4
80	4
81	2
82	6
83	4
84	2
85	0
86	4
87	2
88	4
89	2
90	6
91	4
92	2
93	0
94	4
95	2
96	4
97	2
98	2
99	0
100	6
101	4
102	4
103	2
104	4
105	2