A192863 - cp's OEIS frontend

A192863 Lower flat numbers: odd numbers k such that k-1 is a squarefree number times a power of two.

n	a(n)
1	3
2	5
3	7
4	9
5	11
6	13
7	15
8	17
9	21
10	23
11	25
12	27
13	29
14	31
15	33
16	35
17	39
18	41
19	43
20	45
21	47
22	49
23	53
24	57
25	59
26	61
27	63
28	65
29	67
30	69
31	71
32	75
33	77
34	79
35	81
36	83
37	85
38	87
39	89
40	93
41	95
42	97
43	103
44	105
45	107
46	111
47	113
48	115
49	117
50	119
51	121
52	123
53	125
54	129
55	131
56	133
57	135
58	137
59	139
60	141
61	143
62	147

[3, 5, 7, 9, 11, 13, 15, 17, 21, 23, 25, 27, 29, 31, 33, 35, 39, 41, 43, 45, 47, 49, 53, 57, 59, 61, 63, 65, 67, 69, 71, 75, 77, 79, 81, 83, 85, 87, 89, 93, 95, 97, 103, 105, 107, 111, 113, 115, 117, 119, 121, 123, 125, 129, 131, 133, 135, 137, 139, 141, 143, 147]

cp's OEIS Frontend

A192863 Lower flat numbers: odd numbers k such that k-1 is a squarefree number times a power of two.

Table of values

List of values

n	a(n)
1	3
2	5
3	7
4	9
5	11
6	13
7	15
8	17
9	21
10	23
11	25
12	27
13	29
14	31
15	33
16	35
17	39
18	41
19	43
20	45
21	47
22	49
23	53
24	57
25	59
26	61
27	63
28	65
29	67
30	69
31	71
32	75
33	77
34	79
35	81
36	83
37	85
38	87
39	89
40	93
41	95
42	97
43	103
44	105
45	107
46	111
47	113
48	115
49	117
50	119
51	121
52	123
53	125
54	129
55	131
56	133
57	135
58	137
59	139
60	141
61	143
62	147

n	a(n)
1	3
2	5
3	7
4	9
5	11
6	13
7	15
8	17
9	21
10	23
11	25
12	27
13	29
14	31
15	33
16	35
17	39
18	41
19	43
20	45
21	47
22	49
23	53
24	57
25	59
26	61
27	63
28	65
29	67
30	69
31	71
32	75
33	77
34	79
35	81
36	83
37	85
38	87
39	89
40	93
41	95
42	97
43	103
44	105
45	107
46	111
47	113
48	115
49	117
50	119
51	121
52	123
53	125
54	129
55	131
56	133
57	135
58	137
59	139
60	141
61	143
62	147

n	a(n)
1	3
2	5
3	7
4	9
5	11
6	13
7	15
8	17
9	21
10	23
11	25
12	27
13	29
14	31
15	33
16	35
17	39
18	41
19	43
20	45
21	47
22	49
23	53
24	57
25	59
26	61
27	63
28	65
29	67
30	69
31	71
32	75
33	77
34	79
35	81
36	83
37	85
38	87
39	89
40	93
41	95
42	97
43	103
44	105
45	107
46	111
47	113
48	115
49	117
50	119
51	121
52	123
53	125
54	129
55	131
56	133
57	135
58	137
59	139
60	141
61	143
62	147