A105563 - cp's OEIS frontend

A105563 a(n) = if (exactly 4 Fibonacci numbers exist with exactly n digits) then 1, otherwise 0.

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

[0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0]

cp's OEIS Frontend

A105563 a(n) = if (exactly 4 Fibonacci numbers exist with exactly n digits) then 1, otherwise 0.

Table of values

List of values

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

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

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