A233183 - cp's OEIS frontend

A233183 Number of ways to write n = k + m with 0 < k < m such that C(2*k, k) + prime(m) is prime.

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

[0, 0, 1, 1, 1, 2, 1, 3, 1, 2, 2, 3, 3, 2, 4, 4, 3, 7, 3, 4, 4, 4, 5, 2, 3, 5, 5, 3, 7, 7, 6, 2, 5, 3, 7, 6, 9, 6, 5, 5, 6, 8, 6, 6, 2, 12, 6, 7, 6, 9, 4, 5, 7, 5, 3, 7, 8, 8, 6, 5, 7, 9, 10, 4, 9, 6, 7, 7, 8, 6, 10, 8, 6, 6, 8, 5, 5, 10, 8, 10, 5, 9, 8, 15, 8, 12, 3, 12, 9, 10, 9, 10, 5, 11, 12, 8, 3, 12, 12, 8]

cp's OEIS Frontend

A233183 Number of ways to write n = k + m with 0 < k < m such that C(2*k, k) + prime(m) is prime.

Table of values

List of values

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

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

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