A156549 - cp's OEIS frontend

A156549 Race between primes having an odd/even number of zeros in their binary representation.

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

[1, 0, 1, 0, 1, 2, 3, 2, 3, 4, 3, 4, 5, 4, 5, 4, 5, 6, 5, 6, 5, 4, 5, 6, 5, 6, 5, 4, 3, 4, 3, 4, 5, 4, 3, 4, 5, 4, 5, 6, 7, 8, 9, 10, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 20, 21, 22, 21, 22, 21, 22, 21, 22, 21, 22, 23, 24, 25, 26, 25, 26, 25, 26, 27, 26, 27, 26, 25, 24, 23, 22]

cp's OEIS Frontend

A156549 Race between primes having an odd/even number of zeros in their binary representation.

Table of values

List of values

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

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

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