A046930 - cp's OEIS frontend

A046930 Size of sea of composite numbers surrounding n-th prime.

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

[1, 1, 2, 4, 4, 4, 4, 4, 8, 6, 6, 8, 4, 4, 8, 10, 6, 6, 8, 4, 6, 8, 8, 12, 10, 4, 4, 4, 4, 16, 16, 8, 6, 10, 10, 6, 10, 8, 8, 10, 6, 10, 10, 4, 4, 12, 22, 14, 4, 4, 8, 6, 10, 14, 10, 10, 6, 6, 8, 4, 10, 22, 16, 4, 4, 16, 18, 14, 10, 4, 8, 12, 12, 10, 8, 8, 12, 10, 10, 16, 10, 10, 10, 6, 8, 8]

cp's OEIS Frontend

A046930 Size of sea of composite numbers surrounding n-th prime.

Table of values

List of values

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

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

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