A361643 - cp's OEIS frontend

A361643 The binary expansion of a(n) specifies which primes divide A359804(n).

n	a(n)
1	0
2	1
3	2
4	4
5	1
6	3
7	5
8	8
9	2
10	1
11	6
12	9
13	16
14	3
15	5
16	10
17	17
18	4
19	3
20	9
21	7
22	18
23	12
24	1
25	3
26	5
27	11
28	17
29	6
30	8
31	33
32	2
33	5
34	9
35	3
36	20
37	10
38	1
39	7
40	13
41	19
42	32
43	36
44	65
45	34
46	6
47	129
48	24
49	3
50	5
51	11
52	17
53	68
54	66
55	257
56	7
57	40
58	18
59	33
60	132
61	3
62	9
63	5
64	130
65	14
66	513
67	21
68	258
69	9
70	260
71	3
72	72
73	7

[0, 1, 2, 4, 1, 3, 5, 8, 2, 1, 6, 9, 16, 3, 5, 10, 17, 4, 3, 9, 7, 18, 12, 1, 3, 5, 11, 17, 6, 8, 33, 2, 5, 9, 3, 20, 10, 1, 7, 13, 19, 32, 36, 65, 34, 6, 129, 24, 3, 5, 11, 17, 68, 66, 257, 7, 40, 18, 33, 132, 3, 9, 5, 130, 14, 513, 21, 258, 9, 260, 3, 72, 7]

cp's OEIS Frontend

A361643 The binary expansion of a(n) specifies which primes divide A359804(n).

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	4
5	1
6	3
7	5
8	8
9	2
10	1
11	6
12	9
13	16
14	3
15	5
16	10
17	17
18	4
19	3
20	9
21	7
22	18
23	12
24	1
25	3
26	5
27	11
28	17
29	6
30	8
31	33
32	2
33	5
34	9
35	3
36	20
37	10
38	1
39	7
40	13
41	19
42	32
43	36
44	65
45	34
46	6
47	129
48	24
49	3
50	5
51	11
52	17
53	68
54	66
55	257
56	7
57	40
58	18
59	33
60	132
61	3
62	9
63	5
64	130
65	14
66	513
67	21
68	258
69	9
70	260
71	3
72	72
73	7

n	a(n)
1	0
2	1
3	2
4	4
5	1
6	3
7	5
8	8
9	2
10	1
11	6
12	9
13	16
14	3
15	5
16	10
17	17
18	4
19	3
20	9
21	7
22	18
23	12
24	1
25	3
26	5
27	11
28	17
29	6
30	8
31	33
32	2
33	5
34	9
35	3
36	20
37	10
38	1
39	7
40	13
41	19
42	32
43	36
44	65
45	34
46	6
47	129
48	24
49	3
50	5
51	11
52	17
53	68
54	66
55	257
56	7
57	40
58	18
59	33
60	132
61	3
62	9
63	5
64	130
65	14
66	513
67	21
68	258
69	9
70	260
71	3
72	72
73	7

n	a(n)
1	0
2	1
3	2
4	4
5	1
6	3
7	5
8	8
9	2
10	1
11	6
12	9
13	16
14	3
15	5
16	10
17	17
18	4
19	3
20	9
21	7
22	18
23	12
24	1
25	3
26	5
27	11
28	17
29	6
30	8
31	33
32	2
33	5
34	9
35	3
36	20
37	10
38	1
39	7
40	13
41	19
42	32
43	36
44	65
45	34
46	6
47	129
48	24
49	3
50	5
51	11
52	17
53	68
54	66
55	257
56	7
57	40
58	18
59	33
60	132
61	3
62	9
63	5
64	130
65	14
66	513
67	21
68	258
69	9
70	260
71	3
72	72
73	7