A083747 - cp's OEIS frontend

A083747 Smallest number m >= 0 such that n followed by m ones yields a prime; a(p) = -1 if no such m exists.

n	a(n)
1	1
2	0
3	0
4	1
5	0
6	1
7	0
8	2
9	2
10	1
11	0
12	136
13	0
14	9
15	1
16	3
17	0
18	1
19	0
20	2
21	1
22	3
23	0
24	1
25	1
26	3
27	1
28	1
29	0
30	2
31	0
32	35
33	1
34	6
35	2
36	4
37	0
38	-1
39	2
40	1
41	0
42	1
43	0
44	3
45	772
46	1
47	0
48	5
49	1
50	2
51	4
52	1
53	0
54	1
55	31
56	18470
57	1
58	3
59	0
60	1
61	0
62	2
63	1
64	1
65	3
66	1
67	0
68	3
69	1
70	1
71	0
72	2
73	0
74	2
75	1
76	1
77	9
78	4
79	0
80	2
81	1
82	1
83	0
84	5
85	6
86	3
87	149
88	1
89	0
90	2
91	1
92	3
93	2
94	1
95	2
96	7
97	0
98	2
99	1
100	10
101	0
102	1
103	0
104	44
105	1
106	1
107	0
108	5
109	0
110	17
111	16
112	3
113	0
114	2
115	1
116	9
117	1
118	1
119	5
120	1

[1, 0, 0, 1, 0, 1, 0, 2, 2, 1, 0, 136, 0, 9, 1, 3, 0, 1, 0, 2, 1, 3, 0, 1, 1, 3, 1, 1, 0, 2, 0, 35, 1, 6, 2, 4, 0, -1, 2, 1, 0, 1, 0, 3, 772, 1, 0, 5, 1, 2, 4, 1, 0, 1, 31, 18470, 1, 3, 0, 1, 0, 2, 1, 1, 3, 1, 0, 3, 1, 1, 0, 2, 0, 2, 1, 1, 9, 4, 0, 2, 1, 1, 0, 5, 6, 3, 149, 1, 0, 2, 1, 3, 2, 1, 2, 7, 0, 2, 1, 10, 0, 1, 0, 44, 1, 1, 0, 5, 0, 17, 16, 3, 0, 2, 1, 9, 1, 1, 5, 1]

cp's OEIS Frontend

A083747 Smallest number m >= 0 such that n followed by m ones yields a prime; a(p) = -1 if no such m exists.

Table of values

List of values