A033264 - cp's OEIS frontend

A033264 Number of blocks of {1,0} in the binary expansion of n.

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

[0, 1, 0, 1, 1, 1, 0, 1, 1, 2, 1, 1, 1, 1, 0, 1, 1, 2, 1, 2, 2, 2, 1, 1, 1, 2, 1, 1, 1, 1, 0, 1, 1, 2, 1, 2, 2, 2, 1, 2, 2, 3, 2, 2, 2, 2, 1, 1, 1, 2, 1, 2, 2, 2, 1, 1, 1, 2, 1, 1, 1, 1, 0, 1, 1, 2, 1, 2, 2, 2, 1, 2, 2, 3, 2, 2, 2, 2, 1, 2, 2, 3, 2, 3, 3, 3, 2, 2, 2, 3, 2, 2, 2, 2, 1, 1, 1, 2, 1, 2, 2, 2]

cp's OEIS Frontend

A033264 Number of blocks of {1,0} in the binary expansion of n.

Table of values

List of values

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

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

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