A294882 - cp's OEIS frontend

A294882 Number of proper divisors of n that are not irreducible when their binary expansion is interpreted as polynomial over GF(2).

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

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

cp's OEIS Frontend

A294882 Number of proper divisors of n that are not irreducible when their binary expansion is interpreted as polynomial over GF(2).

Table of values

List of values

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

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

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