A240133 - cp's OEIS frontend

A240133 Least number k such that n!/k + 1 and n!/k - 1 are twin primes.

n	a(n)
3	1
4	2
5	2
6	3
7	12
8	12
9	48
10	8
11	5
12	54
13	44
14	6
15	24
16	39
17	6
18	81
19	20
20	30
21	19
22	25
23	380
24	28
25	264
26	50
27	52
28	250
29	35
30	385
31	20
32	77
33	182
34	405
35	77
36	605
37	143
38	720
39	144
40	722
41	96
42	713
43	46
44	403
45	98
46	4508
47	90
48	77
49	560
50	806
51	64
52	665
53	2376
54	1785
55	893
56	1235
57	4278
58	159
59	66
60	1326
61	1806
62	429
63	475

[1, 2, 2, 3, 12, 12, 48, 8, 5, 54, 44, 6, 24, 39, 6, 81, 20, 30, 19, 25, 380, 28, 264, 50, 52, 250, 35, 385, 20, 77, 182, 405, 77, 605, 143, 720, 144, 722, 96, 713, 46, 403, 98, 4508, 90, 77, 560, 806, 64, 665, 2376, 1785, 893, 1235, 4278, 159, 66, 1326, 1806, 429, 475]

cp's OEIS Frontend

A240133 Least number k such that n!/k + 1 and n!/k - 1 are twin primes.

Table of values

List of values