A351560 - cp's OEIS frontend

A351560 a(n) is a binary representation of the primes that divide sigma(n) [the sum of divisors of n function], shown in decimal.

n	a(n)
1	0
2	2
3	1
4	8
5	3
6	3
7	1
8	6
9	32
10	3
11	3
12	9
13	9
14	3
15	3
16	1024
17	3
18	34
19	5
20	11
21	1
22	3
23	3
24	7
25	1024
26	11
27	5
28	9
29	7
30	3
31	1
32	10
33	3
34	3
35	3
36	40
37	129
38	7
39	9
40	7
41	11
42	3
43	17
44	11
45	35
46	3
47	3
48	1025
49	130
50	1026
51	3
52	9
53	3
54	7
55	3
56	7
57	5
58	7
59	7
60	11
61	1025
62	3
63	33
64	1073741824
65	11
66	3
67	65
68	11
69	3
70	3
71	3
72	38
73	2049
74	131
75	1025
76	13
77	3
78	11
79	5
80	1027
81	16
82	11
83	11
84	9
85	3
86	19

[0, 2, 1, 8, 3, 3, 1, 6, 32, 3, 3, 9, 9, 3, 3, 1024, 3, 34, 5, 11, 1, 3, 3, 7, 1024, 11, 5, 9, 7, 3, 1, 10, 3, 3, 3, 40, 129, 7, 9, 7, 11, 3, 17, 11, 35, 3, 3, 1025, 130, 1026, 3, 9, 3, 7, 3, 7, 5, 7, 7, 11, 1025, 3, 33, 1073741824, 11, 3, 65, 11, 3, 3, 3, 38, 2049, 131, 1025, 13, 3, 11, 5, 1027, 16, 11, 11, 9, 3, 19]

cp's OEIS Frontend

A351560 a(n) is a binary representation of the primes that divide sigma(n) [the sum of divisors of n function], shown in decimal.

Table of values

List of values