A307895 - cp's OEIS frontend

A307895 Numbers whose prime exponents, starting from the largest prime factor through to the smallest, form an initial interval of positive integers.

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	12
8	13
9	17
10	19
11	20
12	23
13	28
14	29
15	31
16	37
17	41
18	43
19	44
20	45
21	47
22	52
23	53
24	59
25	61
26	63
27	67
28	68
29	71
30	73
31	76
32	79
33	83
34	89
35	92
36	97
37	99
38	101
39	103
40	107
41	109
42	113
43	116
44	117
45	124
46	127
47	131
48	137
49	139
50	148
51	149
52	151
53	153
54	157
55	163
56	164
57	167
58	171
59	172
60	173

[1, 2, 3, 5, 7, 11, 12, 13, 17, 19, 20, 23, 28, 29, 31, 37, 41, 43, 44, 45, 47, 52, 53, 59, 61, 63, 67, 68, 71, 73, 76, 79, 83, 89, 92, 97, 99, 101, 103, 107, 109, 113, 116, 117, 124, 127, 131, 137, 139, 148, 149, 151, 153, 157, 163, 164, 167, 171, 172, 173]

cp's OEIS Frontend

A307895 Numbers whose prime exponents, starting from the largest prime factor through to the smallest, form an initial interval of positive integers.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	12
8	13
9	17
10	19
11	20
12	23
13	28
14	29
15	31
16	37
17	41
18	43
19	44
20	45
21	47
22	52
23	53
24	59
25	61
26	63
27	67
28	68
29	71
30	73
31	76
32	79
33	83
34	89
35	92
36	97
37	99
38	101
39	103
40	107
41	109
42	113
43	116
44	117
45	124
46	127
47	131
48	137
49	139
50	148
51	149
52	151
53	153
54	157
55	163
56	164
57	167
58	171
59	172
60	173

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	12
8	13
9	17
10	19
11	20
12	23
13	28
14	29
15	31
16	37
17	41
18	43
19	44
20	45
21	47
22	52
23	53
24	59
25	61
26	63
27	67
28	68
29	71
30	73
31	76
32	79
33	83
34	89
35	92
36	97
37	99
38	101
39	103
40	107
41	109
42	113
43	116
44	117
45	124
46	127
47	131
48	137
49	139
50	148
51	149
52	151
53	153
54	157
55	163
56	164
57	167
58	171
59	172
60	173

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	12
8	13
9	17
10	19
11	20
12	23
13	28
14	29
15	31
16	37
17	41
18	43
19	44
20	45
21	47
22	52
23	53
24	59
25	61
26	63
27	67
28	68
29	71
30	73
31	76
32	79
33	83
34	89
35	92
36	97
37	99
38	101
39	103
40	107
41	109
42	113
43	116
44	117
45	124
46	127
47	131
48	137
49	139
50	148
51	149
52	151
53	153
54	157
55	163
56	164
57	167
58	171
59	172
60	173