A273165 - cp's OEIS frontend

A273165 One half the number of divisors of nonprime numbers that are 3 (mod 4).

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

[2, 2, 2, 2, 2, 2, 3, 3, 2, 2, 2, 3, 2, 2, 2, 2, 4, 2, 3, 2, 2, 3, 3, 2, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4]

cp's OEIS Frontend

A273165 One half the number of divisors of nonprime numbers that are 3 (mod 4).

Table of values

List of values

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

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

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