A133347 - cp's OEIS frontend

A133347 a(n) = smallest k such that prime(n+3) = prime(n) + (prime(n) mod k), or 0 if no such k exists.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	17
11	19
12	27
13	29
14	27
15	33
16	39
17	47
18	49
19	55
20	59
21	19
22	61
23	65
24	15
25	29
26	31
27	31
28	29
29	29
30	89
31	23
32	113
33	41
34	121
35	15
36	27
37	47
38	21
39	17
40	31
41	15
42	33
43	61
44	25
45	57
46	57
47	193
48	71
49	43
50	31
51	43
52	221
53	73
54	233
55	27
56	83
57	257
58	37
59	29
60	51
61	51
62	21
63	11
64	97
65	289
66	41
67	313
68	107
69	67

[0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 19, 27, 29, 27, 33, 39, 47, 49, 55, 59, 19, 61, 65, 15, 29, 31, 31, 29, 29, 89, 23, 113, 41, 121, 15, 27, 47, 21, 17, 31, 15, 33, 61, 25, 57, 57, 193, 71, 43, 31, 43, 221, 73, 233, 27, 83, 257, 37, 29, 51, 51, 21, 11, 97, 289, 41, 313, 107, 67]

cp's OEIS Frontend

A133347 a(n) = smallest k such that prime(n+3) = prime(n) + (prime(n) mod k), or 0 if no such k exists.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	17
11	19
12	27
13	29
14	27
15	33
16	39
17	47
18	49
19	55
20	59
21	19
22	61
23	65
24	15
25	29
26	31
27	31
28	29
29	29
30	89
31	23
32	113
33	41
34	121
35	15
36	27
37	47
38	21
39	17
40	31
41	15
42	33
43	61
44	25
45	57
46	57
47	193
48	71
49	43
50	31
51	43
52	221
53	73
54	233
55	27
56	83
57	257
58	37
59	29
60	51
61	51
62	21
63	11
64	97
65	289
66	41
67	313
68	107
69	67

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	17
11	19
12	27
13	29
14	27
15	33
16	39
17	47
18	49
19	55
20	59
21	19
22	61
23	65
24	15
25	29
26	31
27	31
28	29
29	29
30	89
31	23
32	113
33	41
34	121
35	15
36	27
37	47
38	21
39	17
40	31
41	15
42	33
43	61
44	25
45	57
46	57
47	193
48	71
49	43
50	31
51	43
52	221
53	73
54	233
55	27
56	83
57	257
58	37
59	29
60	51
61	51
62	21
63	11
64	97
65	289
66	41
67	313
68	107
69	67

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	17
11	19
12	27
13	29
14	27
15	33
16	39
17	47
18	49
19	55
20	59
21	19
22	61
23	65
24	15
25	29
26	31
27	31
28	29
29	29
30	89
31	23
32	113
33	41
34	121
35	15
36	27
37	47
38	21
39	17
40	31
41	15
42	33
43	61
44	25
45	57
46	57
47	193
48	71
49	43
50	31
51	43
52	221
53	73
54	233
55	27
56	83
57	257
58	37
59	29
60	51
61	51
62	21
63	11
64	97
65	289
66	41
67	313
68	107
69	67