A075410 - cp's OEIS frontend

A075410 a(n) is the smallest m such that n!!-m and n!!+m are both primes.

n	a(n)
2	0
3	0
4	3
5	2
6	5
7	2
8	5
9	8
10	7
11	4
12	19
13	16
14	29
15	68
16	97
17	16
18	109
19	86
20	19
21	158
22	17
23	172
24	41
25	16
26	529
27	106
28	263
29	212
30	163
31	302
32	593
33	302
34	607
35	262
36	311
37	428
38	227
39	106
40	1271
41	8
42	229
43	386
44	1489
45	32
46	47
47	1996
48	1097
49	2566
50	41
51	632
52	1913
53	458
54	149
55	1244
56	2837
57	362
58	3317
59	908

[0, 0, 3, 2, 5, 2, 5, 8, 7, 4, 19, 16, 29, 68, 97, 16, 109, 86, 19, 158, 17, 172, 41, 16, 529, 106, 263, 212, 163, 302, 593, 302, 607, 262, 311, 428, 227, 106, 1271, 8, 229, 386, 1489, 32, 47, 1996, 1097, 2566, 41, 632, 1913, 458, 149, 1244, 2837, 362, 3317, 908]

cp's OEIS Frontend

A075410 a(n) is the smallest m such that n!!-m and n!!+m are both primes.

Table of values

List of values