A345375 - cp's OEIS frontend

A345375 Number of unitary prime divisors of n whose prime index is even.

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

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

cp's OEIS Frontend

A345375 Number of unitary prime divisors of n whose prime index is even.

Table of values

List of values

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

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

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