A071406 - cp's OEIS frontend

A071406 a(n) is the smallest multiplier of n! such that -1+a(n)n! and 1+a(n)n! are both primes.

n	a(n)
1	4
2	2
3	1
4	3
5	2
6	17
7	7
8	6
9	3
10	14
11	29
12	30
13	48
14	27
15	9
16	24
17	12
18	97
19	78
20	47
21	71
22	80
23	55
24	13
25	57
26	20
27	81
28	259
29	108
30	163
31	81
32	118
33	63
34	215
35	173
36	513
37	420
38	561
39	537
40	1162
41	158
42	33
43	122
44	286
45	459
46	391
47	305
48	288
49	114
50	307
51	15
52	680
53	355
54	365
55	338
56	70
57	23

[4, 2, 1, 3, 2, 17, 7, 6, 3, 14, 29, 30, 48, 27, 9, 24, 12, 97, 78, 47, 71, 80, 55, 13, 57, 20, 81, 259, 108, 163, 81, 118, 63, 215, 173, 513, 420, 561, 537, 1162, 158, 33, 122, 286, 459, 391, 305, 288, 114, 307, 15, 680, 355, 365, 338, 70, 23]

cp's OEIS Frontend

A071406 a(n) is the smallest multiplier of n! such that -1+a(n)n! and 1+a(n)n! are both primes.

Table of values

List of values

cp's OEIS Frontend

A071406 a(n) is the smallest multiplier of n! such that -1+a(n)*n! and 1+a(n)*n! are both primes.

Table of values

List of values

A071406 a(n) is the smallest multiplier of n! such that -1+a(n)n! and 1+a(n)n! are both primes.