A386310 - cp's OEIS frontend

A386310 Number of divisors d of n such that 2*d^d == 0 (mod n).

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

[1, 2, 1, 2, 1, 2, 1, 3, 2, 2, 1, 2, 1, 2, 1, 3, 1, 4, 1, 2, 1, 2, 1, 3, 2, 2, 3, 2, 1, 2, 1, 4, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1, 2, 2, 2, 1, 4, 2, 4, 1, 2, 1, 6, 1, 3, 1, 2, 1, 2, 1, 2, 2, 5, 1, 2, 1, 2, 1, 2, 1, 6, 1, 2, 2, 2, 1, 2, 1, 4, 3, 2, 1, 2, 1, 2, 1, 3, 1, 4, 1, 2, 1, 2, 1, 5, 1, 4, 2, 4]

cp's OEIS Frontend

A386310 Number of divisors d of n such that 2*d^d == 0 (mod n).

Table of values

List of values

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

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

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