A353534 - cp's OEIS frontend

A353534 a(n) is the least prime p such that the numerator of the sum of reciprocals of the 2*n+1 consecutive primes starting with p is a prime.

n	a(n)
1	2
2	2
3	5
4	197
5	7
6	157
7	29
8	41
9	2
10	599
11	3
12	13
13	293
14	19
15	181
16	59
17	7
18	1489
19	557
20	43
21	11
22	23
23	2
24	227
25	191
26	349
27	179
28	2
29	103
30	5479
31	2
32	7
33	131
34	971
35	37
36	2
37	6917
38	23
39	1279
40	10903
41	593
42	311
43	239
44	2711
45	6277
46	1669
47	257
48	293
49	503
50	1861
51	13613
52	11
53	569
54	719
55	619
56	709
57	4523
58	3
59	3
60	2549
61	1361
62	383
63	3
64	10193

[2, 2, 5, 197, 7, 157, 29, 41, 2, 599, 3, 13, 293, 19, 181, 59, 7, 1489, 557, 43, 11, 23, 2, 227, 191, 349, 179, 2, 103, 5479, 2, 7, 131, 971, 37, 2, 6917, 23, 1279, 10903, 593, 311, 239, 2711, 6277, 1669, 257, 293, 503, 1861, 13613, 11, 569, 719, 619, 709, 4523, 3, 3, 2549, 1361, 383, 3, 10193]

cp's OEIS Frontend

A353534 a(n) is the least prime p such that the numerator of the sum of reciprocals of the 2*n+1 consecutive primes starting with p is a prime.

Table of values

List of values