A213815 - cp's OEIS frontend

A213815 Arithmetic mean of next a(n) successive nonnegative integers is prime.

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

[5, 1, 3, 5, 7, 5, 7, 9, 3, 5, 7, 5, 11, 1, 11, 9, 7, 1, 3, 5, 7, 21, 3, 17, 11, 9, 3, 1, 19, 21, 3, 5, 7, 5, 19, 5, 7, 9, 3, 17, 11, 1, 7, 21, 11, 1, 11, 5, 7, 5, 3, 9, 7, 1, 15, 5, 19, 5, 7, 9, 3, 5, 19, 5, 11, 9, 15, 25, 7, 5, 7, 9, 11, 1, 11, 5, 7, 1, 3]

cp's OEIS Frontend

A213815 Arithmetic mean of next a(n) successive nonnegative integers is prime.

Table of values

List of values

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

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

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