A304689 - cp's OEIS frontend

A304689 Number of nonnegative integers k such that n - F(k)*F(k+1) is positive and squarefree, where F(k) denotes the k-th Fibonacci number A000045(k).

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

[1, 2, 3, 2, 2, 2, 4, 3, 2, 1, 3, 3, 3, 2, 3, 4, 4, 2, 3, 3, 4, 3, 4, 2, 3, 2, 2, 3, 3, 3, 3, 4, 2, 3, 4, 4, 4, 3, 4, 3, 5, 3, 5, 4, 4, 3, 4, 4, 3, 2, 2, 3, 5, 3, 3, 2, 5, 3, 5, 2, 5, 4, 4, 2, 2, 4, 4, 4, 3, 4, 5, 4, 5, 4, 4, 3, 4, 3, 5, 4, 3, 3, 4, 4, 4, 4, 4, 4, 4, 1, 4, 3, 5, 3, 5, 2, 5, 3, 3, 2]

cp's OEIS Frontend

A304689 Number of nonnegative integers k such that n - F(k)*F(k+1) is positive and squarefree, where F(k) denotes the k-th Fibonacci number A000045(k).

Table of values

List of values

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

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

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