A177858 - cp's OEIS frontend

A177858 Triangle in which row n gives the number of primes <= 2^n having k 1's in their binary representation, k=1..n.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	3
10	0
11	1
12	3
13	4
14	2
15	1
16	1
17	3
18	6
19	4
20	4
21	0
22	1
23	3
24	9
25	9
26	8
27	0
28	1
29	1
30	3
31	12
32	13
33	20
34	0
35	5
36	0
37	1
38	4
39	12
40	23
41	31
42	8
43	14
44	4
45	0
46	1
47	4
48	16
49	29
50	48
51	24
52	38
53	9
54	3
55	0
56	1
57	4
58	18
59	42
60	73
61	52
62	72
63	29
64	17
65	1
66	0
67	1
68	4
69	21
70	53
71	111
72	80
73	151
74	81
75	52
76	5
77	5
78	0
79	1
80	4
81	23
82	62
83	152
84	158
85	256
86	186

[1, 1, 1, 1, 2, 1, 1, 2, 3, 0, 1, 3, 4, 2, 1, 1, 3, 6, 4, 4, 0, 1, 3, 9, 9, 8, 0, 1, 1, 3, 12, 13, 20, 0, 5, 0, 1, 4, 12, 23, 31, 8, 14, 4, 0, 1, 4, 16, 29, 48, 24, 38, 9, 3, 0, 1, 4, 18, 42, 73, 52, 72, 29, 17, 1, 0, 1, 4, 21, 53, 111, 80, 151, 81, 52, 5, 5, 0, 1, 4, 23, 62, 152, 158, 256, 186]

cp's OEIS Frontend

A177858 Triangle in which row n gives the number of primes <= 2^n having k 1's in their binary representation, k=1..n.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	3
10	0
11	1
12	3
13	4
14	2
15	1
16	1
17	3
18	6
19	4
20	4
21	0
22	1
23	3
24	9
25	9
26	8
27	0
28	1
29	1
30	3
31	12
32	13
33	20
34	0
35	5
36	0
37	1
38	4
39	12
40	23
41	31
42	8
43	14
44	4
45	0
46	1
47	4
48	16
49	29
50	48
51	24
52	38
53	9
54	3
55	0
56	1
57	4
58	18
59	42
60	73
61	52
62	72
63	29
64	17
65	1
66	0
67	1
68	4
69	21
70	53
71	111
72	80
73	151
74	81
75	52
76	5
77	5
78	0
79	1
80	4
81	23
82	62
83	152
84	158
85	256
86	186

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	3
10	0
11	1
12	3
13	4
14	2
15	1
16	1
17	3
18	6
19	4
20	4
21	0
22	1
23	3
24	9
25	9
26	8
27	0
28	1
29	1
30	3
31	12
32	13
33	20
34	0
35	5
36	0
37	1
38	4
39	12
40	23
41	31
42	8
43	14
44	4
45	0
46	1
47	4
48	16
49	29
50	48
51	24
52	38
53	9
54	3
55	0
56	1
57	4
58	18
59	42
60	73
61	52
62	72
63	29
64	17
65	1
66	0
67	1
68	4
69	21
70	53
71	111
72	80
73	151
74	81
75	52
76	5
77	5
78	0
79	1
80	4
81	23
82	62
83	152
84	158
85	256
86	186

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	3
10	0
11	1
12	3
13	4
14	2
15	1
16	1
17	3
18	6
19	4
20	4
21	0
22	1
23	3
24	9
25	9
26	8
27	0
28	1
29	1
30	3
31	12
32	13
33	20
34	0
35	5
36	0
37	1
38	4
39	12
40	23
41	31
42	8
43	14
44	4
45	0
46	1
47	4
48	16
49	29
50	48
51	24
52	38
53	9
54	3
55	0
56	1
57	4
58	18
59	42
60	73
61	52
62	72
63	29
64	17
65	1
66	0
67	1
68	4
69	21
70	53
71	111
72	80
73	151
74	81
75	52
76	5
77	5
78	0
79	1
80	4
81	23
82	62
83	152
84	158
85	256
86	186