A080384 - cp's OEIS frontend

A080384 Numbers k such that there are exactly 6 numbers j for which binomial(k, floor(k/2)) / binomial(k,j) is an integer, i.e., A080383(k) = 6.

n	a(n)
1	5
2	7
3	9
4	11
5	15
6	17
7	19
8	21
9	23
10	27
11	29
12	33
13	35
14	39
15	43
16	45
17	47
18	49
19	51
20	53
21	55
22	59
23	61
24	63
25	65
26	67
27	69
28	71
29	73
30	75
31	77
32	79
33	81
34	83
35	87
36	89
37	93
38	95
39	97
40	99
41	101
42	103
43	105
44	107
45	109
46	111
47	113
48	115
49	117
50	119
51	121
52	123
53	125
54	127
55	129
56	131
57	135
58	137
59	139
60	141
61	143
62	145

[5, 7, 9, 11, 15, 17, 19, 21, 23, 27, 29, 33, 35, 39, 43, 45, 47, 49, 51, 53, 55, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 87, 89, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131, 135, 137, 139, 141, 143, 145]

cp's OEIS Frontend

A080384 Numbers k such that there are exactly 6 numbers j for which binomial(k, floor(k/2)) / binomial(k,j) is an integer, i.e., A080383(k) = 6.

Table of values

List of values

n	a(n)
1	5
2	7
3	9
4	11
5	15
6	17
7	19
8	21
9	23
10	27
11	29
12	33
13	35
14	39
15	43
16	45
17	47
18	49
19	51
20	53
21	55
22	59
23	61
24	63
25	65
26	67
27	69
28	71
29	73
30	75
31	77
32	79
33	81
34	83
35	87
36	89
37	93
38	95
39	97
40	99
41	101
42	103
43	105
44	107
45	109
46	111
47	113
48	115
49	117
50	119
51	121
52	123
53	125
54	127
55	129
56	131
57	135
58	137
59	139
60	141
61	143
62	145

n	a(n)
1	5
2	7
3	9
4	11
5	15
6	17
7	19
8	21
9	23
10	27
11	29
12	33
13	35
14	39
15	43
16	45
17	47
18	49
19	51
20	53
21	55
22	59
23	61
24	63
25	65
26	67
27	69
28	71
29	73
30	75
31	77
32	79
33	81
34	83
35	87
36	89
37	93
38	95
39	97
40	99
41	101
42	103
43	105
44	107
45	109
46	111
47	113
48	115
49	117
50	119
51	121
52	123
53	125
54	127
55	129
56	131
57	135
58	137
59	139
60	141
61	143
62	145

n	a(n)
1	5
2	7
3	9
4	11
5	15
6	17
7	19
8	21
9	23
10	27
11	29
12	33
13	35
14	39
15	43
16	45
17	47
18	49
19	51
20	53
21	55
22	59
23	61
24	63
25	65
26	67
27	69
28	71
29	73
30	75
31	77
32	79
33	81
34	83
35	87
36	89
37	93
38	95
39	97
40	99
41	101
42	103
43	105
44	107
45	109
46	111
47	113
48	115
49	117
50	119
51	121
52	123
53	125
54	127
55	129
56	131
57	135
58	137
59	139
60	141
61	143
62	145