A300231 - cp's OEIS frontend

A300231 Filter sequence combining A001065(n) and A009194(n), the sum of proper divisors of n and gcd(n,sigma(n)).

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

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

cp's OEIS Frontend

A300231 Filter sequence combining A001065(n) and A009194(n), the sum of proper divisors of n and gcd(n,sigma(n)).

Table of values

List of values

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

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

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