A070940 - cp's OEIS frontend

A070940 Number of digits that must be counted from left to right to reach the last 1 in the binary representation of n.

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

[1, 1, 2, 1, 3, 2, 3, 1, 4, 3, 4, 2, 4, 3, 4, 1, 5, 4, 5, 3, 5, 4, 5, 2, 5, 4, 5, 3, 5, 4, 5, 1, 6, 5, 6, 4, 6, 5, 6, 3, 6, 5, 6, 4, 6, 5, 6, 2, 6, 5, 6, 4, 6, 5, 6, 3, 6, 5, 6, 4, 6, 5, 6, 1, 7, 6, 7, 5, 7, 6, 7, 4, 7, 6, 7, 5, 7, 6, 7, 3, 7, 6, 7, 5, 7, 6, 7, 4, 7, 6, 7, 5, 7]

cp's OEIS Frontend

A070940 Number of digits that must be counted from left to right to reach the last 1 in the binary representation of n.

Table of values

List of values

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

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

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