A281388 - cp's OEIS frontend

A281388 Write n in binary reflected Gray code and sum the positions where there is a '1' followed immediately to the right by a '0', counting the leftmost digit as position 1.

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

[0, 0, 1, 2, 0, 1, 1, 2, 2, 0, 3, 4, 1, 1, 1, 2, 2, 2, 6, 4, 0, 3, 3, 4, 4, 1, 5, 5, 1, 1, 1, 2, 2, 2, 7, 7, 2, 6, 6, 4, 4, 0, 5, 8, 3, 3, 3, 4, 4, 4, 9, 6, 1, 5, 5, 5, 5, 1, 6, 6, 1, 1, 1, 2, 2, 2, 8, 8, 2, 7, 7, 7, 7, 2, 8, 12, 6, 6, 6, 4, 4, 4, 10, 6, 0, 5, 5, 8, 8, 3, 9, 9, 3, 3, 3]

cp's OEIS Frontend

A281388 Write n in binary reflected Gray code and sum the positions where there is a '1' followed immediately to the right by a '0', counting the leftmost digit as position 1.

Table of values

List of values

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

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

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