A309095 - cp's OEIS frontend

A309095 a(n) is the largest k such that every number from 1 to k can be covered by n geometric progressions of rational numbers.

n	a(n)
1	2
2	5
3	8
4	10
5	13
6	16
7	18
8	21
9	25
10	28
11	30
12	33
13	35
14	37
15	40
16	42
17	45
18	50
19	53
20	56
21	58
22	60
23	62
24	65
25	68
26	70
27	73
28	77
29	80
30	82
31	85
32	88
33	90
34	93
35	96
36	100
37	102
38	105
39	107
40	109
41	112
42	114
43	117
44	120
45	122
46	126
47	129
48	132
49	134
50	137
51	139
52	141
53	144
54	148
55	152
56	154
57	157
58	160
59	162
60	165

[2, 5, 8, 10, 13, 16, 18, 21, 25, 28, 30, 33, 35, 37, 40, 42, 45, 50, 53, 56, 58, 60, 62, 65, 68, 70, 73, 77, 80, 82, 85, 88, 90, 93, 96, 100, 102, 105, 107, 109, 112, 114, 117, 120, 122, 126, 129, 132, 134, 137, 139, 141, 144, 148, 152, 154, 157, 160, 162, 165]

cp's OEIS Frontend

A309095 a(n) is the largest k such that every number from 1 to k can be covered by n geometric progressions of rational numbers.

Table of values

List of values

n	a(n)
1	2
2	5
3	8
4	10
5	13
6	16
7	18
8	21
9	25
10	28
11	30
12	33
13	35
14	37
15	40
16	42
17	45
18	50
19	53
20	56
21	58
22	60
23	62
24	65
25	68
26	70
27	73
28	77
29	80
30	82
31	85
32	88
33	90
34	93
35	96
36	100
37	102
38	105
39	107
40	109
41	112
42	114
43	117
44	120
45	122
46	126
47	129
48	132
49	134
50	137
51	139
52	141
53	144
54	148
55	152
56	154
57	157
58	160
59	162
60	165

n	a(n)
1	2
2	5
3	8
4	10
5	13
6	16
7	18
8	21
9	25
10	28
11	30
12	33
13	35
14	37
15	40
16	42
17	45
18	50
19	53
20	56
21	58
22	60
23	62
24	65
25	68
26	70
27	73
28	77
29	80
30	82
31	85
32	88
33	90
34	93
35	96
36	100
37	102
38	105
39	107
40	109
41	112
42	114
43	117
44	120
45	122
46	126
47	129
48	132
49	134
50	137
51	139
52	141
53	144
54	148
55	152
56	154
57	157
58	160
59	162
60	165

n	a(n)
1	2
2	5
3	8
4	10
5	13
6	16
7	18
8	21
9	25
10	28
11	30
12	33
13	35
14	37
15	40
16	42
17	45
18	50
19	53
20	56
21	58
22	60
23	62
24	65
25	68
26	70
27	73
28	77
29	80
30	82
31	85
32	88
33	90
34	93
35	96
36	100
37	102
38	105
39	107
40	109
41	112
42	114
43	117
44	120
45	122
46	126
47	129
48	132
49	134
50	137
51	139
52	141
53	144
54	148
55	152
56	154
57	157
58	160
59	162
60	165