A242040 - cp's OEIS frontend

A242040 Numbers n such that n + k! and n - k! are both prime for some k.

n	a(n)
1	4
2	5
3	6
4	9
5	11
6	12
7	13
8	15
9	17
10	18
11	21
12	23
13	25
14	29
15	30
16	35
17	37
18	39
19	42
20	43
21	45
22	47
23	53
24	55
25	60
26	65
27	67
28	69
29	72
30	73
31	77
32	81
33	83
34	85
35	95
36	99
37	102
38	103
39	105
40	107
41	108
42	111
43	113
44	125
45	127
46	129
47	131
48	133
49	137
50	138
51	143
52	145
53	149
54	150
55	151
56	155
57	157
58	161
59	163
60	165
61	173
62	175
63	180
64	185
65	187

[4, 5, 6, 9, 11, 12, 13, 15, 17, 18, 21, 23, 25, 29, 30, 35, 37, 39, 42, 43, 45, 47, 53, 55, 60, 65, 67, 69, 72, 73, 77, 81, 83, 85, 95, 99, 102, 103, 105, 107, 108, 111, 113, 125, 127, 129, 131, 133, 137, 138, 143, 145, 149, 150, 151, 155, 157, 161, 163, 165, 173, 175, 180, 185, 187]

cp's OEIS Frontend

A242040 Numbers n such that n + k! and n - k! are both prime for some k.

Table of values

List of values

n	a(n)
1	4
2	5
3	6
4	9
5	11
6	12
7	13
8	15
9	17
10	18
11	21
12	23
13	25
14	29
15	30
16	35
17	37
18	39
19	42
20	43
21	45
22	47
23	53
24	55
25	60
26	65
27	67
28	69
29	72
30	73
31	77
32	81
33	83
34	85
35	95
36	99
37	102
38	103
39	105
40	107
41	108
42	111
43	113
44	125
45	127
46	129
47	131
48	133
49	137
50	138
51	143
52	145
53	149
54	150
55	151
56	155
57	157
58	161
59	163
60	165
61	173
62	175
63	180
64	185
65	187

n	a(n)
1	4
2	5
3	6
4	9
5	11
6	12
7	13
8	15
9	17
10	18
11	21
12	23
13	25
14	29
15	30
16	35
17	37
18	39
19	42
20	43
21	45
22	47
23	53
24	55
25	60
26	65
27	67
28	69
29	72
30	73
31	77
32	81
33	83
34	85
35	95
36	99
37	102
38	103
39	105
40	107
41	108
42	111
43	113
44	125
45	127
46	129
47	131
48	133
49	137
50	138
51	143
52	145
53	149
54	150
55	151
56	155
57	157
58	161
59	163
60	165
61	173
62	175
63	180
64	185
65	187

n	a(n)
1	4
2	5
3	6
4	9
5	11
6	12
7	13
8	15
9	17
10	18
11	21
12	23
13	25
14	29
15	30
16	35
17	37
18	39
19	42
20	43
21	45
22	47
23	53
24	55
25	60
26	65
27	67
28	69
29	72
30	73
31	77
32	81
33	83
34	85
35	95
36	99
37	102
38	103
39	105
40	107
41	108
42	111
43	113
44	125
45	127
46	129
47	131
48	133
49	137
50	138
51	143
52	145
53	149
54	150
55	151
56	155
57	157
58	161
59	163
60	165
61	173
62	175
63	180
64	185
65	187