A231555 - cp's OEIS frontend

A231555 Number of ways to write n = x + y (x, y > 0) with x*(x + 1) + F(y) prime, where F(y) denotes the y-th Fibonacci number (A000045).

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

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

cp's OEIS Frontend

A231555 Number of ways to write n = x + y (x, y > 0) with x*(x + 1) + F(y) prime, where F(y) denotes the y-th Fibonacci number (A000045).

Table of values

List of values

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

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

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