A091591 - cp's OEIS frontend

A091591 Number of pairs of twin primes between n^2 and (n+1)^2.

n	a(n)
3	1
4	1
5	1
6	1
7	1
8	1
9	0
10	2
11	1
12	1
13	2
14	1
15	2
16	2
17	1
18	1
19	0
20	2
21	1
22	1
23	1
24	2
25	2
26	0
27	0
28	3
29	2
30	0
31	1
32	3
33	2
34	0
35	3
36	2
37	1
38	3
39	0
40	3
41	2
42	1
43	3
44	2
45	4
46	2
47	2
48	3
49	0
50	2
51	2
52	4
53	0
54	2
55	1
56	1
57	5
58	4
59	4
60	1
61	2
62	3
63	4
64	3
65	5
66	2
67	2
68	3
69	2
70	4
71	1
72	2
73	2
74	3
75	4
76	3
77	0
78	3
79	3
80	2
81	4
82	5
83	2
84	2
85	3
86	4
87	1
88	2
89	3
90	2
91	3
92	3
93	1
94	5
95	1
96	3
97	4
98	4
99	2
100	5
101	3
102	4
103	1
104	3
105	5
106	1
107	2

[1, 1, 1, 1, 1, 1, 0, 2, 1, 1, 2, 1, 2, 2, 1, 1, 0, 2, 1, 1, 1, 2, 2, 0, 0, 3, 2, 0, 1, 3, 2, 0, 3, 2, 1, 3, 0, 3, 2, 1, 3, 2, 4, 2, 2, 3, 0, 2, 2, 4, 0, 2, 1, 1, 5, 4, 4, 1, 2, 3, 4, 3, 5, 2, 2, 3, 2, 4, 1, 2, 2, 3, 4, 3, 0, 3, 3, 2, 4, 5, 2, 2, 3, 4, 1, 2, 3, 2, 3, 3, 1, 5, 1, 3, 4, 4, 2, 5, 3, 4, 1, 3, 5, 1, 2]

cp's OEIS Frontend

A091591 Number of pairs of twin primes between n^2 and (n+1)^2.

Table of values

List of values

n	a(n)
3	1
4	1
5	1
6	1
7	1
8	1
9	0
10	2
11	1
12	1
13	2
14	1
15	2
16	2
17	1
18	1
19	0
20	2
21	1
22	1
23	1
24	2
25	2
26	0
27	0
28	3
29	2
30	0
31	1
32	3
33	2
34	0
35	3
36	2
37	1
38	3
39	0
40	3
41	2
42	1
43	3
44	2
45	4
46	2
47	2
48	3
49	0
50	2
51	2
52	4
53	0
54	2
55	1
56	1
57	5
58	4
59	4
60	1
61	2
62	3
63	4
64	3
65	5
66	2
67	2
68	3
69	2
70	4
71	1
72	2
73	2
74	3
75	4
76	3
77	0
78	3
79	3
80	2
81	4
82	5
83	2
84	2
85	3
86	4
87	1
88	2
89	3
90	2
91	3
92	3
93	1
94	5
95	1
96	3
97	4
98	4
99	2
100	5
101	3
102	4
103	1
104	3
105	5
106	1
107	2

n	a(n)
3	1
4	1
5	1
6	1
7	1
8	1
9	0
10	2
11	1
12	1
13	2
14	1
15	2
16	2
17	1
18	1
19	0
20	2
21	1
22	1
23	1
24	2
25	2
26	0
27	0
28	3
29	2
30	0
31	1
32	3
33	2
34	0
35	3
36	2
37	1
38	3
39	0
40	3
41	2
42	1
43	3
44	2
45	4
46	2
47	2
48	3
49	0
50	2
51	2
52	4
53	0
54	2
55	1
56	1
57	5
58	4
59	4
60	1
61	2
62	3
63	4
64	3
65	5
66	2
67	2
68	3
69	2
70	4
71	1
72	2
73	2
74	3
75	4
76	3
77	0
78	3
79	3
80	2
81	4
82	5
83	2
84	2
85	3
86	4
87	1
88	2
89	3
90	2
91	3
92	3
93	1
94	5
95	1
96	3
97	4
98	4
99	2
100	5
101	3
102	4
103	1
104	3
105	5
106	1
107	2

n	a(n)
3	1
4	1
5	1
6	1
7	1
8	1
9	0
10	2
11	1
12	1
13	2
14	1
15	2
16	2
17	1
18	1
19	0
20	2
21	1
22	1
23	1
24	2
25	2
26	0
27	0
28	3
29	2
30	0
31	1
32	3
33	2
34	0
35	3
36	2
37	1
38	3
39	0
40	3
41	2
42	1
43	3
44	2
45	4
46	2
47	2
48	3
49	0
50	2
51	2
52	4
53	0
54	2
55	1
56	1
57	5
58	4
59	4
60	1
61	2
62	3
63	4
64	3
65	5
66	2
67	2
68	3
69	2
70	4
71	1
72	2
73	2
74	3
75	4
76	3
77	0
78	3
79	3
80	2
81	4
82	5
83	2
84	2
85	3
86	4
87	1
88	2
89	3
90	2
91	3
92	3
93	1
94	5
95	1
96	3
97	4
98	4
99	2
100	5
101	3
102	4
103	1
104	3
105	5
106	1
107	2