A126243 - cp's OEIS frontend

A126243 a(n) = smallest prime number p which is the arithmetic mean of n-th prime < p and n-th prime > p.

n	a(n)
1	5
2	11
3	11
4	41
5	29
6	37
7	53
8	67
9	131
10	71
11	97
12	139
13	127
14	727
15	193
16	157
17	191
18	211
19	191
20	359
21	307
22	521
23	349
24	577
25	571
26	353
27	307
28	487
29	347
30	541
31	571
32	487
33	541
34	409
35	947
36	593
37	563
38	569
39	787
40	547
41	587
42	983
43	587
44	569
45	587
46	1223
47	563
48	557
49	1213
50	569
51	563
52	1381
53	1213

[5, 11, 11, 41, 29, 37, 53, 67, 131, 71, 97, 139, 127, 727, 193, 157, 191, 211, 191, 359, 307, 521, 349, 577, 571, 353, 307, 487, 347, 541, 571, 487, 541, 409, 947, 593, 563, 569, 787, 547, 587, 983, 587, 569, 587, 1223, 563, 557, 1213, 569, 563, 1381, 1213]

cp's OEIS Frontend

A126243 a(n) = smallest prime number p which is the arithmetic mean of n-th prime < p and n-th prime > p.

Table of values

List of values