A324657 - cp's OEIS frontend

A324657 a(n) is the number of successive primorials A002110(i) larger than prime(n) that need to be tried before sum prime(n)+A002110(i) is found to be composite.

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	2
8	0
9	3
10	4
11	2
12	0
13	5
14	0
15	2
16	1
17	1
18	3
19	3
20	2
21	5
22	0
23	3
24	0
25	1
26	2
27	1
28	4
29	0
30	0
31	2
32	0
33	2
34	1
35	2
36	0
37	3
38	2
39	0
40	1
41	1
42	0
43	1
44	0
45	0
46	1
47	2
48	0
49	0
50	2
51	1
52	2
53	3
54	0
55	0
56	0
57	1
58	0
59	0
60	1
61	4
62	0
63	1
64	2
65	0
66	0
67	0
68	4
69	1
70	1
71	1
72	0
73	1
74	2
75	1
76	1
77	1
78	3
79	2
80	1
81	2
82	1
83	1
84	0
85	2
86	1
87	0
88	1
89	0
90	0
91	2
92	4
93	2
94	1
95	0
96	0
97	3
98	0
99	4
100	1
101	3
102	0
103	0
104	1
105	0

[0, 0, 1, 1, 1, 2, 2, 0, 3, 4, 2, 0, 5, 0, 2, 1, 1, 3, 3, 2, 5, 0, 3, 0, 1, 2, 1, 4, 0, 0, 2, 0, 2, 1, 2, 0, 3, 2, 0, 1, 1, 0, 1, 0, 0, 1, 2, 0, 0, 2, 1, 2, 3, 0, 0, 0, 1, 0, 0, 1, 4, 0, 1, 2, 0, 0, 0, 4, 1, 1, 1, 0, 1, 2, 1, 1, 1, 3, 2, 1, 2, 1, 1, 0, 2, 1, 0, 1, 0, 0, 2, 4, 2, 1, 0, 0, 3, 0, 4, 1, 3, 0, 0, 1, 0]

cp's OEIS Frontend

A324657 a(n) is the number of successive primorials A002110(i) larger than prime(n) that need to be tried before sum prime(n)+A002110(i) is found to be composite.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	2
8	0
9	3
10	4
11	2
12	0
13	5
14	0
15	2
16	1
17	1
18	3
19	3
20	2
21	5
22	0
23	3
24	0
25	1
26	2
27	1
28	4
29	0
30	0
31	2
32	0
33	2
34	1
35	2
36	0
37	3
38	2
39	0
40	1
41	1
42	0
43	1
44	0
45	0
46	1
47	2
48	0
49	0
50	2
51	1
52	2
53	3
54	0
55	0
56	0
57	1
58	0
59	0
60	1
61	4
62	0
63	1
64	2
65	0
66	0
67	0
68	4
69	1
70	1
71	1
72	0
73	1
74	2
75	1
76	1
77	1
78	3
79	2
80	1
81	2
82	1
83	1
84	0
85	2
86	1
87	0
88	1
89	0
90	0
91	2
92	4
93	2
94	1
95	0
96	0
97	3
98	0
99	4
100	1
101	3
102	0
103	0
104	1
105	0

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	2
8	0
9	3
10	4
11	2
12	0
13	5
14	0
15	2
16	1
17	1
18	3
19	3
20	2
21	5
22	0
23	3
24	0
25	1
26	2
27	1
28	4
29	0
30	0
31	2
32	0
33	2
34	1
35	2
36	0
37	3
38	2
39	0
40	1
41	1
42	0
43	1
44	0
45	0
46	1
47	2
48	0
49	0
50	2
51	1
52	2
53	3
54	0
55	0
56	0
57	1
58	0
59	0
60	1
61	4
62	0
63	1
64	2
65	0
66	0
67	0
68	4
69	1
70	1
71	1
72	0
73	1
74	2
75	1
76	1
77	1
78	3
79	2
80	1
81	2
82	1
83	1
84	0
85	2
86	1
87	0
88	1
89	0
90	0
91	2
92	4
93	2
94	1
95	0
96	0
97	3
98	0
99	4
100	1
101	3
102	0
103	0
104	1
105	0

n	a(n)
1	0
2	0
3	1
4	1
5	1
6	2
7	2
8	0
9	3
10	4
11	2
12	0
13	5
14	0
15	2
16	1
17	1
18	3
19	3
20	2
21	5
22	0
23	3
24	0
25	1
26	2
27	1
28	4
29	0
30	0
31	2
32	0
33	2
34	1
35	2
36	0
37	3
38	2
39	0
40	1
41	1
42	0
43	1
44	0
45	0
46	1
47	2
48	0
49	0
50	2
51	1
52	2
53	3
54	0
55	0
56	0
57	1
58	0
59	0
60	1
61	4
62	0
63	1
64	2
65	0
66	0
67	0
68	4
69	1
70	1
71	1
72	0
73	1
74	2
75	1
76	1
77	1
78	3
79	2
80	1
81	2
82	1
83	1
84	0
85	2
86	1
87	0
88	1
89	0
90	0
91	2
92	4
93	2
94	1
95	0
96	0
97	3
98	0
99	4
100	1
101	3
102	0
103	0
104	1
105	0