A067316 - cp's OEIS frontend

A067316 a(n) is the number of values of j, 0 <= j <= n, such that 1 + binomial(n,j) is prime.

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

[1, 2, 3, 2, 5, 4, 4, 2, 5, 6, 6, 6, 6, 4, 5, 2, 6, 8, 8, 6, 6, 4, 4, 2, 11, 4, 4, 8, 8, 8, 4, 2, 6, 4, 8, 14, 8, 4, 5, 6, 12, 10, 4, 6, 9, 8, 8, 4, 6, 8, 6, 10, 6, 6, 12, 6, 8, 4, 12, 2, 6, 8, 4, 2, 8, 18, 8, 2, 6, 14, 10, 16, 10, 6, 4, 10, 13, 8, 12, 4, 8, 2, 8, 14, 2, 6, 4, 10, 10, 16, 10, 10, 9]

cp's OEIS Frontend

A067316 a(n) is the number of values of j, 0 <= j <= n, such that 1 + binomial(n,j) is prime.

Table of values

List of values

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

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

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