A330908 - cp's OEIS frontend

A330908 a(n+1) = a(n) + (number of divisors of a(n) that are not divisors of other divisors of a(n)) for n>1; a(1)=1.

n	a(n)
1	1
2	2
3	4
4	6
5	9
6	11
7	13
8	15
9	18
10	21
11	24
12	27
13	29
14	31
15	33
16	36
17	39
18	42
19	46
20	49
21	51
22	54
23	57
24	60
25	64
26	66
27	70
28	74
29	77
30	80
31	83
32	85
33	88
34	91
35	94
36	97
37	99
38	102
39	106
40	109
41	111
42	114
43	118
44	121
45	123
46	126
47	130
48	134
49	137
50	139
51	141
52	144
53	147
54	150
55	154
56	158
57	161
58	164
59	167
60	169

[1, 2, 4, 6, 9, 11, 13, 15, 18, 21, 24, 27, 29, 31, 33, 36, 39, 42, 46, 49, 51, 54, 57, 60, 64, 66, 70, 74, 77, 80, 83, 85, 88, 91, 94, 97, 99, 102, 106, 109, 111, 114, 118, 121, 123, 126, 130, 134, 137, 139, 141, 144, 147, 150, 154, 158, 161, 164, 167, 169]

cp's OEIS Frontend

A330908 a(n+1) = a(n) + (number of divisors of a(n) that are not divisors of other divisors of a(n)) for n>1; a(1)=1.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	6
5	9
6	11
7	13
8	15
9	18
10	21
11	24
12	27
13	29
14	31
15	33
16	36
17	39
18	42
19	46
20	49
21	51
22	54
23	57
24	60
25	64
26	66
27	70
28	74
29	77
30	80
31	83
32	85
33	88
34	91
35	94
36	97
37	99
38	102
39	106
40	109
41	111
42	114
43	118
44	121
45	123
46	126
47	130
48	134
49	137
50	139
51	141
52	144
53	147
54	150
55	154
56	158
57	161
58	164
59	167
60	169

n	a(n)
1	1
2	2
3	4
4	6
5	9
6	11
7	13
8	15
9	18
10	21
11	24
12	27
13	29
14	31
15	33
16	36
17	39
18	42
19	46
20	49
21	51
22	54
23	57
24	60
25	64
26	66
27	70
28	74
29	77
30	80
31	83
32	85
33	88
34	91
35	94
36	97
37	99
38	102
39	106
40	109
41	111
42	114
43	118
44	121
45	123
46	126
47	130
48	134
49	137
50	139
51	141
52	144
53	147
54	150
55	154
56	158
57	161
58	164
59	167
60	169

n	a(n)
1	1
2	2
3	4
4	6
5	9
6	11
7	13
8	15
9	18
10	21
11	24
12	27
13	29
14	31
15	33
16	36
17	39
18	42
19	46
20	49
21	51
22	54
23	57
24	60
25	64
26	66
27	70
28	74
29	77
30	80
31	83
32	85
33	88
34	91
35	94
36	97
37	99
38	102
39	106
40	109
41	111
42	114
43	118
44	121
45	123
46	126
47	130
48	134
49	137
50	139
51	141
52	144
53	147
54	150
55	154
56	158
57	161
58	164
59	167
60	169