A383970 - cp's OEIS frontend

A383970 Inventory sequence: record the number of prior terms such that if 2 then 4, then 6,... are added the result is a prime. Reset the count at each term = 0.

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

[0, 1, 1, 2, 0, 4, 2, 2, 0, 5, 2, 3, 2, 3, 3, 4, 5, 4, 3, 2, 2, 6, 6, 2, 2, 4, 4, 6, 6, 4, 4, 2, 2, 4, 2, 2, 6, 6, 2, 2, 4, 4, 6, 6, 2, 2, 4, 4, 4, 2, 2, 4, 2, 0, 12, 6, 4, 6, 6, 4, 6, 6, 4, 4, 2, 2, 6, 6, 2, 2, 4, 4, 6, 6, 4, 4, 2, 2, 4, 2, 2, 6, 6, 2, 2, 4, 4]

cp's OEIS Frontend

A383970 Inventory sequence: record the number of prior terms such that if 2 then 4, then 6,... are added the result is a prime. Reset the count at each term = 0.

Table of values

List of values

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

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

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