A001276 - cp's OEIS frontend

A001276 Smallest k such that the product of q/(q-1) over the primes from prime(n) to prime(n+k-1) is greater than 2.

n	a(n)
1	2
2	3
3	7
4	15
5	27
6	41
7	62
8	85
9	115
10	150
11	186
12	229
13	274
14	323
15	380
16	443
17	509
18	577
19	653
20	733
21	818
22	912
23	1010
24	1114
25	1222
26	1331
27	1448
28	1572
29	1704
30	1845
31	1994
32	2138
33	2289
34	2445
35	2609
36	2774
37	2948
38	3127
39	3311
40	3502
41	3699
42	3900
43	4112
44	4324
45	4546
46	4775
47	5016
48	5255
49	5493

[2, 3, 7, 15, 27, 41, 62, 85, 115, 150, 186, 229, 274, 323, 380, 443, 509, 577, 653, 733, 818, 912, 1010, 1114, 1222, 1331, 1448, 1572, 1704, 1845, 1994, 2138, 2289, 2445, 2609, 2774, 2948, 3127, 3311, 3502, 3699, 3900, 4112, 4324, 4546, 4775, 5016, 5255, 5493]

cp's OEIS Frontend

A001276 Smallest k such that the product of q/(q-1) over the primes from prime(n) to prime(n+k-1) is greater than 2.

Table of values

List of values