A373891 - cp's OEIS frontend

A373891 Number of primes less than prime(n) having the same difference between consecutive primes as prime(n).

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	1
7	3
8	2
9	0
10	4
11	1
12	3
13	5
14	4
15	2
16	3
17	6
18	4
19	5
20	7
21	5
22	6
23	6
24	0
25	7
26	8
27	8
28	9
29	9
30	0
31	10
32	7
33	10
34	0
35	11
36	8
37	9
38	11
39	10
40	11
41	12
42	1
43	13
44	12
45	14
46	0
47	1
48	13
49	15
50	14
51	12
52	16
53	2
54	13
55	14
56	15
57	17
58	16
59	15
60	18
61	3
62	1
63	16
64	19
65	17
66	2
67	17
68	4
69	20
70	18
71	18
72	1
73	19
74	20
75	19
76	21
77	2
78	20
79	3
80	5

[0, 0, 1, 0, 2, 1, 3, 2, 0, 4, 1, 3, 5, 4, 2, 3, 6, 4, 5, 7, 5, 6, 6, 0, 7, 8, 8, 9, 9, 0, 10, 7, 10, 0, 11, 8, 9, 11, 10, 11, 12, 1, 13, 12, 14, 0, 1, 13, 15, 14, 12, 16, 2, 13, 14, 15, 17, 16, 15, 18, 3, 1, 16, 19, 17, 2, 17, 4, 20, 18, 18, 1, 19, 20, 19, 21, 2, 20, 3, 5]

cp's OEIS Frontend

A373891 Number of primes less than prime(n) having the same difference between consecutive primes as prime(n).

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	1
7	3
8	2
9	0
10	4
11	1
12	3
13	5
14	4
15	2
16	3
17	6
18	4
19	5
20	7
21	5
22	6
23	6
24	0
25	7
26	8
27	8
28	9
29	9
30	0
31	10
32	7
33	10
34	0
35	11
36	8
37	9
38	11
39	10
40	11
41	12
42	1
43	13
44	12
45	14
46	0
47	1
48	13
49	15
50	14
51	12
52	16
53	2
54	13
55	14
56	15
57	17
58	16
59	15
60	18
61	3
62	1
63	16
64	19
65	17
66	2
67	17
68	4
69	20
70	18
71	18
72	1
73	19
74	20
75	19
76	21
77	2
78	20
79	3
80	5

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	1
7	3
8	2
9	0
10	4
11	1
12	3
13	5
14	4
15	2
16	3
17	6
18	4
19	5
20	7
21	5
22	6
23	6
24	0
25	7
26	8
27	8
28	9
29	9
30	0
31	10
32	7
33	10
34	0
35	11
36	8
37	9
38	11
39	10
40	11
41	12
42	1
43	13
44	12
45	14
46	0
47	1
48	13
49	15
50	14
51	12
52	16
53	2
54	13
55	14
56	15
57	17
58	16
59	15
60	18
61	3
62	1
63	16
64	19
65	17
66	2
67	17
68	4
69	20
70	18
71	18
72	1
73	19
74	20
75	19
76	21
77	2
78	20
79	3
80	5

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	1
7	3
8	2
9	0
10	4
11	1
12	3
13	5
14	4
15	2
16	3
17	6
18	4
19	5
20	7
21	5
22	6
23	6
24	0
25	7
26	8
27	8
28	9
29	9
30	0
31	10
32	7
33	10
34	0
35	11
36	8
37	9
38	11
39	10
40	11
41	12
42	1
43	13
44	12
45	14
46	0
47	1
48	13
49	15
50	14
51	12
52	16
53	2
54	13
55	14
56	15
57	17
58	16
59	15
60	18
61	3
62	1
63	16
64	19
65	17
66	2
67	17
68	4
69	20
70	18
71	18
72	1
73	19
74	20
75	19
76	21
77	2
78	20
79	3
80	5