A250205 - cp's OEIS frontend

A250205 Riesel problem in base 6: Least k > 0 such that n*6^k-1 is prime, or 0 if no such k exists.

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

[1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 2, 1, 1, 0, 1, 1, 1, 2, 0, 1, 1, 2, 1, 0, 2, 1, 1, 1, 0, 1, 1, 2, 2, 0, 4, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 4, 1, 3, 0, 1, 1, 6, 2, 0, 5, 1, 1, 1, 0, 6, 2, 1, 1, 0, 1, 2, 10, 1, 0, 1, 3, 1, 1, 0, 1, 1, 2, 1, 0, 1, 8, 1, 1, 0, 1, 2, 2, 4, 0, 49, 1, 1, 1, 0, 2, 1, 1, 1, 0, 2, 1, 6, 2, 0, 1, 1, 1, 1, 0, 5, 1, 1, 2, 0, 1, 10, 2, 1]

cp's OEIS Frontend

A250205 Riesel problem in base 6: Least k > 0 such that n*6^k-1 is prime, or 0 if no such k exists.

Table of values

List of values

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

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

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