A165316 - cp's OEIS frontend

A165316 a(n) = the number of digits in the binary representation of n that each either precede and/or follow a similarly valued digit.

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

[0, 0, 2, 2, 0, 2, 3, 3, 2, 0, 2, 4, 2, 3, 4, 4, 3, 2, 4, 2, 0, 2, 3, 5, 4, 2, 4, 5, 3, 4, 5, 5, 4, 3, 5, 4, 2, 4, 5, 3, 2, 0, 2, 4, 2, 3, 4, 6, 5, 4, 6, 4, 2, 4, 5, 6, 5, 3, 5, 6, 4, 5, 6, 6, 5, 4, 6, 5, 3, 5, 6, 5, 4, 2, 4, 6, 4, 5, 6, 4, 3, 2, 4, 2, 0, 2, 3, 5, 4, 2, 4, 5, 3, 4, 5, 7, 6, 5, 7, 6, 4, 6, 7, 5, 4]

cp's OEIS Frontend

A165316 a(n) = the number of digits in the binary representation of n that each either precede and/or follow a similarly valued digit.

Table of values

List of values

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

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

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