A037888 - cp's OEIS frontend

A037888 a(n) = (1/2)Sum_{i} |d(i) - e(i)| where Sum_{i} d(i)2^i is the base-2 representation of n and e(i) are digits d(i) in reverse order.

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

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

cp's OEIS Frontend

A037888 a(n) = (1/2)Sum_{i} |d(i) - e(i)| where Sum_{i} d(i)2^i is the base-2 representation of n and e(i) are digits d(i) in reverse order.

Table of values

List of values

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

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

cp's OEIS Frontend

A037888 a(n) = (1/2)*Sum_{i} |d(i) - e(i)| where Sum_{i} d(i)*2^i is the base-2 representation of n and e(i) are digits d(i) in reverse order.

Table of values

List of values

A037888 a(n) = (1/2)Sum_{i} |d(i) - e(i)| where Sum_{i} d(i)2^i is the base-2 representation of n and e(i) are digits d(i) in reverse order.

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