A126387 - cp's OEIS frontend

A126387 Read binary expansion of n from the left; keep track of the excess of 1's over 0's that have been seen so far; sequence gives maximum(excess of 1's over 0's).

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

[0, 1, 1, 2, 1, 1, 2, 3, 1, 1, 1, 2, 2, 2, 3, 4, 1, 1, 1, 1, 1, 1, 2, 3, 2, 2, 2, 3, 3, 3, 4, 5, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 2, 2, 3, 4, 2, 2, 2, 2, 2, 2, 3, 4, 3, 3, 3, 4, 4, 4, 5, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 1, 1, 1, 1, 1, 1, 2, 3, 2, 2, 2, 3, 3, 3, 4, 5, 2, 2, 2, 2, 2, 2, 2, 3, 2]

cp's OEIS Frontend

A126387 Read binary expansion of n from the left; keep track of the excess of 1's over 0's that have been seen so far; sequence gives maximum(excess of 1's over 0's).

Table of values

List of values

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

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

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