A184907 - cp's OEIS frontend

A184907 Let S_n be the set of the integers having alternating bit sum equal to n. There are a(n) primes among the smallest 2n+1 numbers of S_n.

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

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

cp's OEIS Frontend

A184907 Let S_n be the set of the integers having alternating bit sum equal to n. There are a(n) primes among the smallest 2n+1 numbers of S_n.

Table of values

List of values

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

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

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