A244579 - cp's OEIS frontend

A244579 Numbers k with the property that the number of parts in the symmetric representation of sigma(k) equals the number of divisors of k.

n	a(n)
1	1
2	3
3	5
4	7
5	9
6	11
7	13
8	17
9	19
10	21
11	23
12	25
13	27
14	29
15	31
16	33
17	37
18	39
19	41
20	43
21	47
22	49
23	51
24	53
25	55
26	57
27	59
28	61
29	65
30	67
31	69
32	71
33	73
34	79
35	81
36	83
37	85
38	87
39	89
40	93
41	95
42	97
43	101
44	103
45	107
46	109
47	111
48	113
49	115
50	119
51	121
52	123
53	125
54	127
55	129
56	131
57	133
58	137
59	139
60	141
61	145

[1, 3, 5, 7, 9, 11, 13, 17, 19, 21, 23, 25, 27, 29, 31, 33, 37, 39, 41, 43, 47, 49, 51, 53, 55, 57, 59, 61, 65, 67, 69, 71, 73, 79, 81, 83, 85, 87, 89, 93, 95, 97, 101, 103, 107, 109, 111, 113, 115, 119, 121, 123, 125, 127, 129, 131, 133, 137, 139, 141, 145]

cp's OEIS Frontend

A244579 Numbers k with the property that the number of parts in the symmetric representation of sigma(k) equals the number of divisors of k.

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	7
5	9
6	11
7	13
8	17
9	19
10	21
11	23
12	25
13	27
14	29
15	31
16	33
17	37
18	39
19	41
20	43
21	47
22	49
23	51
24	53
25	55
26	57
27	59
28	61
29	65
30	67
31	69
32	71
33	73
34	79
35	81
36	83
37	85
38	87
39	89
40	93
41	95
42	97
43	101
44	103
45	107
46	109
47	111
48	113
49	115
50	119
51	121
52	123
53	125
54	127
55	129
56	131
57	133
58	137
59	139
60	141
61	145

n	a(n)
1	1
2	3
3	5
4	7
5	9
6	11
7	13
8	17
9	19
10	21
11	23
12	25
13	27
14	29
15	31
16	33
17	37
18	39
19	41
20	43
21	47
22	49
23	51
24	53
25	55
26	57
27	59
28	61
29	65
30	67
31	69
32	71
33	73
34	79
35	81
36	83
37	85
38	87
39	89
40	93
41	95
42	97
43	101
44	103
45	107
46	109
47	111
48	113
49	115
50	119
51	121
52	123
53	125
54	127
55	129
56	131
57	133
58	137
59	139
60	141
61	145

n	a(n)
1	1
2	3
3	5
4	7
5	9
6	11
7	13
8	17
9	19
10	21
11	23
12	25
13	27
14	29
15	31
16	33
17	37
18	39
19	41
20	43
21	47
22	49
23	51
24	53
25	55
26	57
27	59
28	61
29	65
30	67
31	69
32	71
33	73
34	79
35	81
36	83
37	85
38	87
39	89
40	93
41	95
42	97
43	101
44	103
45	107
46	109
47	111
48	113
49	115
50	119
51	121
52	123
53	125
54	127
55	129
56	131
57	133
58	137
59	139
60	141
61	145