A174220 - cp's OEIS frontend

A174220 Number of regular primes between p^2 and p*q, where p and q are consecutive primes.

n	a(n)
1	1
2	2
3	2
4	4
5	3
6	8
7	2
8	6
9	8
10	5
11	22
12	15
13	7
14	10
15	23
16	21
17	6
18	26
19	19
20	7
21	34
22	18
23	33
24	38
25	27
26	18
27	27
28	12
29	30
30	95
31	29
32	59
33	14
34	79
35	11
36	59
37	58
38	37
39	61
40	59
41	23
42	96
43	22
44	43
45	19
46	131
47	143
48	50
49	31
50	55
51	84
52	30
53	134
54	86
55	88
56	77
57	24
58	87
59	60
60	28
61	162
62	227
63	73
64	37
65	55
66	248
67	104
68	174
69	39
70	65
71	104
72	143

[1, 2, 2, 4, 3, 8, 2, 6, 8, 5, 22, 15, 7, 10, 23, 21, 6, 26, 19, 7, 34, 18, 33, 38, 27, 18, 27, 12, 30, 95, 29, 59, 14, 79, 11, 59, 58, 37, 61, 59, 23, 96, 22, 43, 19, 131, 143, 50, 31, 55, 84, 30, 134, 86, 88, 77, 24, 87, 60, 28, 162, 227, 73, 37, 55, 248, 104, 174, 39, 65, 104, 143]

cp's OEIS Frontend

A174220 Number of regular primes between p^2 and p*q, where p and q are consecutive primes.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	4
5	3
6	8
7	2
8	6
9	8
10	5
11	22
12	15
13	7
14	10
15	23
16	21
17	6
18	26
19	19
20	7
21	34
22	18
23	33
24	38
25	27
26	18
27	27
28	12
29	30
30	95
31	29
32	59
33	14
34	79
35	11
36	59
37	58
38	37
39	61
40	59
41	23
42	96
43	22
44	43
45	19
46	131
47	143
48	50
49	31
50	55
51	84
52	30
53	134
54	86
55	88
56	77
57	24
58	87
59	60
60	28
61	162
62	227
63	73
64	37
65	55
66	248
67	104
68	174
69	39
70	65
71	104
72	143

n	a(n)
1	1
2	2
3	2
4	4
5	3
6	8
7	2
8	6
9	8
10	5
11	22
12	15
13	7
14	10
15	23
16	21
17	6
18	26
19	19
20	7
21	34
22	18
23	33
24	38
25	27
26	18
27	27
28	12
29	30
30	95
31	29
32	59
33	14
34	79
35	11
36	59
37	58
38	37
39	61
40	59
41	23
42	96
43	22
44	43
45	19
46	131
47	143
48	50
49	31
50	55
51	84
52	30
53	134
54	86
55	88
56	77
57	24
58	87
59	60
60	28
61	162
62	227
63	73
64	37
65	55
66	248
67	104
68	174
69	39
70	65
71	104
72	143

n	a(n)
1	1
2	2
3	2
4	4
5	3
6	8
7	2
8	6
9	8
10	5
11	22
12	15
13	7
14	10
15	23
16	21
17	6
18	26
19	19
20	7
21	34
22	18
23	33
24	38
25	27
26	18
27	27
28	12
29	30
30	95
31	29
32	59
33	14
34	79
35	11
36	59
37	58
38	37
39	61
40	59
41	23
42	96
43	22
44	43
45	19
46	131
47	143
48	50
49	31
50	55
51	84
52	30
53	134
54	86
55	88
56	77
57	24
58	87
59	60
60	28
61	162
62	227
63	73
64	37
65	55
66	248
67	104
68	174
69	39
70	65
71	104
72	143