A281497 - cp's OEIS frontend

A281497 Write n in binary reflected Gray code and sum the positions where there is a '1' followed immediately to the left by a '0', counting the rightmost digit as position 1.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	1
10	0
11	0
12	2
13	2
14	1
15	0
16	0
17	1
18	2
19	2
20	0
21	0
22	1
23	0
24	3
25	4
26	3
27	3
28	2
29	2
30	1
31	0
32	0
33	1
34	2
35	2
36	3
37	3
38	4
39	3
40	0
41	1
42	0
43	0
44	2
45	2
46	1
47	0
48	4
49	5
50	6
51	6
52	4
53	4
54	5
55	4
56	3
57	4
58	3
59	3
60	2
61	2
62	1
63	0
64	0
65	1
66	2
67	2
68	3
69	3
70	4
71	3
72	4
73	5
74	4
75	4
76	6
77	6
78	5
79	4
80	0
81	1
82	2
83	2
84	0
85	0
86	1
87	0
88	3
89	4
90	3
91	3
92	2
93	2
94	1
95	0
96	5
97	6
98	7
99	7
100	8
101	8
102	9
103	8
104	5
105	6
106	5
107	5
108	7
109	7
110	6

[0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 2, 2, 1, 0, 0, 1, 2, 2, 0, 0, 1, 0, 3, 4, 3, 3, 2, 2, 1, 0, 0, 1, 2, 2, 3, 3, 4, 3, 0, 1, 0, 0, 2, 2, 1, 0, 4, 5, 6, 6, 4, 4, 5, 4, 3, 4, 3, 3, 2, 2, 1, 0, 0, 1, 2, 2, 3, 3, 4, 3, 4, 5, 4, 4, 6, 6, 5, 4, 0, 1, 2, 2, 0, 0, 1, 0, 3, 4, 3, 3, 2, 2, 1, 0, 5, 6, 7, 7, 8, 8, 9, 8, 5, 6, 5, 5, 7, 7, 6]

cp's OEIS Frontend

A281497 Write n in binary reflected Gray code and sum the positions where there is a '1' followed immediately to the left by a '0', counting the rightmost digit as position 1.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	1
10	0
11	0
12	2
13	2
14	1
15	0
16	0
17	1
18	2
19	2
20	0
21	0
22	1
23	0
24	3
25	4
26	3
27	3
28	2
29	2
30	1
31	0
32	0
33	1
34	2
35	2
36	3
37	3
38	4
39	3
40	0
41	1
42	0
43	0
44	2
45	2
46	1
47	0
48	4
49	5
50	6
51	6
52	4
53	4
54	5
55	4
56	3
57	4
58	3
59	3
60	2
61	2
62	1
63	0
64	0
65	1
66	2
67	2
68	3
69	3
70	4
71	3
72	4
73	5
74	4
75	4
76	6
77	6
78	5
79	4
80	0
81	1
82	2
83	2
84	0
85	0
86	1
87	0
88	3
89	4
90	3
91	3
92	2
93	2
94	1
95	0
96	5
97	6
98	7
99	7
100	8
101	8
102	9
103	8
104	5
105	6
106	5
107	5
108	7
109	7
110	6

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	1
10	0
11	0
12	2
13	2
14	1
15	0
16	0
17	1
18	2
19	2
20	0
21	0
22	1
23	0
24	3
25	4
26	3
27	3
28	2
29	2
30	1
31	0
32	0
33	1
34	2
35	2
36	3
37	3
38	4
39	3
40	0
41	1
42	0
43	0
44	2
45	2
46	1
47	0
48	4
49	5
50	6
51	6
52	4
53	4
54	5
55	4
56	3
57	4
58	3
59	3
60	2
61	2
62	1
63	0
64	0
65	1
66	2
67	2
68	3
69	3
70	4
71	3
72	4
73	5
74	4
75	4
76	6
77	6
78	5
79	4
80	0
81	1
82	2
83	2
84	0
85	0
86	1
87	0
88	3
89	4
90	3
91	3
92	2
93	2
94	1
95	0
96	5
97	6
98	7
99	7
100	8
101	8
102	9
103	8
104	5
105	6
106	5
107	5
108	7
109	7
110	6

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	1
10	0
11	0
12	2
13	2
14	1
15	0
16	0
17	1
18	2
19	2
20	0
21	0
22	1
23	0
24	3
25	4
26	3
27	3
28	2
29	2
30	1
31	0
32	0
33	1
34	2
35	2
36	3
37	3
38	4
39	3
40	0
41	1
42	0
43	0
44	2
45	2
46	1
47	0
48	4
49	5
50	6
51	6
52	4
53	4
54	5
55	4
56	3
57	4
58	3
59	3
60	2
61	2
62	1
63	0
64	0
65	1
66	2
67	2
68	3
69	3
70	4
71	3
72	4
73	5
74	4
75	4
76	6
77	6
78	5
79	4
80	0
81	1
82	2
83	2
84	0
85	0
86	1
87	0
88	3
89	4
90	3
91	3
92	2
93	2
94	1
95	0
96	5
97	6
98	7
99	7
100	8
101	8
102	9
103	8
104	5
105	6
106	5
107	5
108	7
109	7
110	6