A260581 - cp's OEIS frontend

A260581 Numbers n for which d(n+d(n)) > d(n), where d(n) is the number of divisors of n.

n	a(n)
1	1
2	2
3	7
4	8
5	9
6	13
7	14
8	18
9	19
10	23
11	25
12	26
13	31
14	37
15	38
16	40
17	43
18	46
19	47
20	49
21	50
22	53
23	61
24	62
25	67
26	73
27	74
28	77
29	79
30	80
31	83
32	86
33	88
34	89
35	94
36	95
37	97
38	98
39	99
40	103
41	104
42	106
43	108
44	109
45	113
46	121
47	122
48	124
49	127
50	131
51	132
52	134
53	136
54	139
55	143
56	146
57	148
58	151
59	152
60	154
61	156

[1, 2, 7, 8, 9, 13, 14, 18, 19, 23, 25, 26, 31, 37, 38, 40, 43, 46, 47, 49, 50, 53, 61, 62, 67, 73, 74, 77, 79, 80, 83, 86, 88, 89, 94, 95, 97, 98, 99, 103, 104, 106, 108, 109, 113, 121, 122, 124, 127, 131, 132, 134, 136, 139, 143, 146, 148, 151, 152, 154, 156]

cp's OEIS Frontend

A260581 Numbers n for which d(n+d(n)) > d(n), where d(n) is the number of divisors of n.

Table of values

List of values

n	a(n)
1	1
2	2
3	7
4	8
5	9
6	13
7	14
8	18
9	19
10	23
11	25
12	26
13	31
14	37
15	38
16	40
17	43
18	46
19	47
20	49
21	50
22	53
23	61
24	62
25	67
26	73
27	74
28	77
29	79
30	80
31	83
32	86
33	88
34	89
35	94
36	95
37	97
38	98
39	99
40	103
41	104
42	106
43	108
44	109
45	113
46	121
47	122
48	124
49	127
50	131
51	132
52	134
53	136
54	139
55	143
56	146
57	148
58	151
59	152
60	154
61	156

n	a(n)
1	1
2	2
3	7
4	8
5	9
6	13
7	14
8	18
9	19
10	23
11	25
12	26
13	31
14	37
15	38
16	40
17	43
18	46
19	47
20	49
21	50
22	53
23	61
24	62
25	67
26	73
27	74
28	77
29	79
30	80
31	83
32	86
33	88
34	89
35	94
36	95
37	97
38	98
39	99
40	103
41	104
42	106
43	108
44	109
45	113
46	121
47	122
48	124
49	127
50	131
51	132
52	134
53	136
54	139
55	143
56	146
57	148
58	151
59	152
60	154
61	156

n	a(n)
1	1
2	2
3	7
4	8
5	9
6	13
7	14
8	18
9	19
10	23
11	25
12	26
13	31
14	37
15	38
16	40
17	43
18	46
19	47
20	49
21	50
22	53
23	61
24	62
25	67
26	73
27	74
28	77
29	79
30	80
31	83
32	86
33	88
34	89
35	94
36	95
37	97
38	98
39	99
40	103
41	104
42	106
43	108
44	109
45	113
46	121
47	122
48	124
49	127
50	131
51	132
52	134
53	136
54	139
55	143
56	146
57	148
58	151
59	152
60	154
61	156