A371451 - cp's OEIS frontend

A371451 Number of connected components of the binary indices of the prime indices of n.

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	1
10	1
11	1
12	2
13	1
14	2
15	1
16	1
17	1
18	2
19	1
20	1
21	2
22	1
23	1
24	2
25	1
26	2
27	1
28	2
29	1
30	1
31	1
32	1
33	2
34	1
35	2
36	2
37	1
38	2
39	1
40	1
41	1
42	3
43	1
44	1
45	1
46	1
47	1
48	2
49	1
50	1
51	1
52	2
53	1
54	2
55	1
56	2
57	2
58	2
59	1
60	1
61	1
62	1
63	2
64	1
65	1
66	2
67	1
68	1
69	2
70	2
71	1
72	2
73	1
74	2
75	1
76	2
77	1
78	2
79	1
80	1
81	1
82	1
83	1
84	3
85	1
86	2
87	1
88	1
89	1
90	1
91	1
92	1
93	1
94	1
95	2
96	2
97	1
98	2
99	2
100	1
101	1
102	1
103	1
104	2
105	2

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

cp's OEIS Frontend

A371451 Number of connected components of the binary indices of the prime indices of n.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	1
10	1
11	1
12	2
13	1
14	2
15	1
16	1
17	1
18	2
19	1
20	1
21	2
22	1
23	1
24	2
25	1
26	2
27	1
28	2
29	1
30	1
31	1
32	1
33	2
34	1
35	2
36	2
37	1
38	2
39	1
40	1
41	1
42	3
43	1
44	1
45	1
46	1
47	1
48	2
49	1
50	1
51	1
52	2
53	1
54	2
55	1
56	2
57	2
58	2
59	1
60	1
61	1
62	1
63	2
64	1
65	1
66	2
67	1
68	1
69	2
70	2
71	1
72	2
73	1
74	2
75	1
76	2
77	1
78	2
79	1
80	1
81	1
82	1
83	1
84	3
85	1
86	2
87	1
88	1
89	1
90	1
91	1
92	1
93	1
94	1
95	2
96	2
97	1
98	2
99	2
100	1
101	1
102	1
103	1
104	2
105	2

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	1
10	1
11	1
12	2
13	1
14	2
15	1
16	1
17	1
18	2
19	1
20	1
21	2
22	1
23	1
24	2
25	1
26	2
27	1
28	2
29	1
30	1
31	1
32	1
33	2
34	1
35	2
36	2
37	1
38	2
39	1
40	1
41	1
42	3
43	1
44	1
45	1
46	1
47	1
48	2
49	1
50	1
51	1
52	2
53	1
54	2
55	1
56	2
57	2
58	2
59	1
60	1
61	1
62	1
63	2
64	1
65	1
66	2
67	1
68	1
69	2
70	2
71	1
72	2
73	1
74	2
75	1
76	2
77	1
78	2
79	1
80	1
81	1
82	1
83	1
84	3
85	1
86	2
87	1
88	1
89	1
90	1
91	1
92	1
93	1
94	1
95	2
96	2
97	1
98	2
99	2
100	1
101	1
102	1
103	1
104	2
105	2

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	1
9	1
10	1
11	1
12	2
13	1
14	2
15	1
16	1
17	1
18	2
19	1
20	1
21	2
22	1
23	1
24	2
25	1
26	2
27	1
28	2
29	1
30	1
31	1
32	1
33	2
34	1
35	2
36	2
37	1
38	2
39	1
40	1
41	1
42	3
43	1
44	1
45	1
46	1
47	1
48	2
49	1
50	1
51	1
52	2
53	1
54	2
55	1
56	2
57	2
58	2
59	1
60	1
61	1
62	1
63	2
64	1
65	1
66	2
67	1
68	1
69	2
70	2
71	1
72	2
73	1
74	2
75	1
76	2
77	1
78	2
79	1
80	1
81	1
82	1
83	1
84	3
85	1
86	2
87	1
88	1
89	1
90	1
91	1
92	1
93	1
94	1
95	2
96	2
97	1
98	2
99	2
100	1
101	1
102	1
103	1
104	2
105	2