A304331 - cp's OEIS frontend

A304331 Number of integers k > 1 such that n - F(k) is a positive squarefree number, where F(k) denotes the k-th Fibonacci number A000045(k).

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

[0, 1, 2, 3, 2, 3, 3, 4, 3, 3, 3, 3, 3, 4, 5, 5, 2, 5, 4, 4, 2, 5, 5, 6, 3, 4, 5, 4, 2, 3, 5, 5, 2, 6, 6, 7, 4, 5, 6, 6, 4, 6, 6, 7, 4, 4, 6, 5, 4, 4, 5, 4, 2, 5, 5, 7, 3, 5, 5, 8, 4, 5, 6, 6, 4, 5, 6, 7, 5, 6, 5, 8, 4, 7, 6, 6, 4, 6, 6, 6, 5, 5, 4, 5, 5, 6, 7, 6, 4, 8]

cp's OEIS Frontend

A304331 Number of integers k > 1 such that n - F(k) is a positive squarefree number, where F(k) denotes the k-th Fibonacci number A000045(k).

Table of values

List of values

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

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

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