A371442 - cp's OEIS frontend

A371442 For any positive integer n with binary digits (b_1, ..., b_w) (where b_1 = 1), the binary digits of a(n) are (b_1, b_3, ..., b_{2*ceiling(w/2)-1}); a(0) = 0.

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

[0, 1, 1, 1, 2, 3, 2, 3, 2, 2, 3, 3, 2, 2, 3, 3, 4, 5, 4, 5, 6, 7, 6, 7, 4, 5, 4, 5, 6, 7, 6, 7, 4, 4, 5, 5, 4, 4, 5, 5, 6, 6, 7, 7, 6, 6, 7, 7, 4, 4, 5, 5, 4, 4, 5, 5, 6, 6, 7, 7, 6, 6, 7, 7, 8, 9, 8, 9, 10, 11, 10, 11, 8, 9, 8, 9, 10, 11, 10, 11, 12, 13, 12]

cp's OEIS Frontend

A371442 For any positive integer n with binary digits (b_1, ..., b_w) (where b_1 = 1), the binary digits of a(n) are (b_1, b_3, ..., b_{2*ceiling(w/2)-1}); a(0) = 0.

Table of values

List of values

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

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

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