A128049 - cp's OEIS frontend

A128049 Least number k>0 such that abs((3^k - (3-n)^k)/n) is prime, or 0 if no such prime exists.

n	a(n)
0	0
1	2
2	3
3	2
4	2
5	3
6	0
7	3
8	2
9	2
10	3
11	2
12	0
13	2
14	3
15	0
16	3
17	2
18	0
19	2
20	37
21	0
22	3
23	2
24	0
25	2
26	1153
27	0
28	83
29	2
30	0
31	3
32	11
33	0
34	3
35	2
36	0
37	2
38	3
39	0
40	557
41	19
42	0
43	2
44	3
45	0
46	7
47	2
48	0
49	2
50	631
51	0
52	5
53	2
54	0
55	3
56	3
57	0
58	239
59	2
60	0
61	5
62	3
63	0
64	3
65	2
66	0
67	2
68	317
69	0
70	3
71	103
72	0
73	2
74	7
75	0
76	3
77	2
78	0
79	2
80	43

[0, 2, 3, 2, 2, 3, 0, 3, 2, 2, 3, 2, 0, 2, 3, 0, 3, 2, 0, 2, 37, 0, 3, 2, 0, 2, 1153, 0, 83, 2, 0, 3, 11, 0, 3, 2, 0, 2, 3, 0, 557, 19, 0, 2, 3, 0, 7, 2, 0, 2, 631, 0, 5, 2, 0, 3, 3, 0, 239, 2, 0, 5, 3, 0, 3, 2, 0, 2, 317, 0, 3, 103, 0, 2, 7, 0, 3, 2, 0, 2, 43]

cp's OEIS Frontend

A128049 Least number k>0 such that abs((3^k - (3-n)^k)/n) is prime, or 0 if no such prime exists.

Table of values

List of values