A229089 - cp's OEIS frontend

A229089 Numbers n such that sigma(n) mod n < antisigma(n) mod n, where sigma(n) = A000203(n) = sum of divisor of n, antisigma(n) = A024816(n) = sum of non-divisors of n.

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

[3, 5, 6, 7, 9, 11, 13, 14, 17, 18, 19, 20, 22, 23, 25, 26, 27, 28, 29, 31, 33, 34, 35, 36, 37, 38, 39, 41, 43, 46, 47, 48, 49, 51, 53, 54, 55, 56, 57, 58, 59, 61, 62, 65, 66, 67, 69, 70, 71, 72, 73, 74, 77, 78, 79, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 93]

cp's OEIS Frontend

A229089 Numbers n such that sigma(n) mod n < antisigma(n) mod n, where sigma(n) = A000203(n) = sum of divisor of n, antisigma(n) = A024816(n) = sum of non-divisors of n.

Table of values

List of values

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

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

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