A228098 - cp's OEIS frontend

A228098 Number of primes p > prime(n) and such that prime(n)*p < prime(n+1)^2.

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

[1, 2, 1, 3, 1, 2, 1, 1, 2, 1, 3, 2, 1, 1, 2, 2, 1, 3, 2, 1, 2, 1, 1, 3, 2, 1, 2, 1, 1, 4, 1, 2, 1, 3, 1, 2, 2, 1, 2, 2, 1, 4, 1, 2, 1, 2, 4, 2, 1, 1, 2, 1, 2, 2, 2, 2, 1, 3, 2, 1, 1, 4, 2, 1, 1, 2, 1, 3, 1, 1, 1, 2, 2, 2, 1, 1, 2, 1, 1, 2, 1, 3, 1, 2, 1, 1, 3]

cp's OEIS Frontend

A228098 Number of primes p > prime(n) and such that prime(n)*p < prime(n+1)^2.

Table of values

List of values

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

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

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