A085298 - cp's OEIS frontend

A085298 a(n) is the smallest exponent x such that prime(n)^x when reversed is a prime.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	8
10	7
11	1
12	1
13	2
14	5
15	15
16	10
17	12
18	4
19	39
20	1
21	1
22	1
23	11
24	2
25	1
26	1
27	10
28	1
29	23
30	1
31	5
32	1
33	243
34	2
35	1
36	1
37	1
38	23
39	1
40	34
41	1
42	1
43	1
44	2
45	58
46	1
47	3
48	9
49	166
50	17
51	68
52	8
53	8
54	3
55	7
56	5
57	5
58	2
59	2
60	2
61	61
62	11
63	97
64	1
65	1
66	10
67	2
68	1
69	1
70	41
71	1
72	1
73	66
74	1
75	5
76	1
77	1
78	2
79	2
80	8
81	40
82	2
83	8
84	19
85	2
86	2
87	723

[1, 1, 1, 1, 1, 1, 1, 2, 8, 7, 1, 1, 2, 5, 15, 10, 12, 4, 39, 1, 1, 1, 11, 2, 1, 1, 10, 1, 23, 1, 5, 1, 243, 2, 1, 1, 1, 23, 1, 34, 1, 1, 1, 2, 58, 1, 3, 9, 166, 17, 68, 8, 8, 3, 7, 5, 5, 2, 2, 2, 61, 11, 97, 1, 1, 10, 2, 1, 1, 41, 1, 1, 66, 1, 5, 1, 1, 2, 2, 8, 40, 2, 8, 19, 2, 2, 723]

cp's OEIS Frontend

A085298 a(n) is the smallest exponent x such that prime(n)^x when reversed is a prime.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	8
10	7
11	1
12	1
13	2
14	5
15	15
16	10
17	12
18	4
19	39
20	1
21	1
22	1
23	11
24	2
25	1
26	1
27	10
28	1
29	23
30	1
31	5
32	1
33	243
34	2
35	1
36	1
37	1
38	23
39	1
40	34
41	1
42	1
43	1
44	2
45	58
46	1
47	3
48	9
49	166
50	17
51	68
52	8
53	8
54	3
55	7
56	5
57	5
58	2
59	2
60	2
61	61
62	11
63	97
64	1
65	1
66	10
67	2
68	1
69	1
70	41
71	1
72	1
73	66
74	1
75	5
76	1
77	1
78	2
79	2
80	8
81	40
82	2
83	8
84	19
85	2
86	2
87	723

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	8
10	7
11	1
12	1
13	2
14	5
15	15
16	10
17	12
18	4
19	39
20	1
21	1
22	1
23	11
24	2
25	1
26	1
27	10
28	1
29	23
30	1
31	5
32	1
33	243
34	2
35	1
36	1
37	1
38	23
39	1
40	34
41	1
42	1
43	1
44	2
45	58
46	1
47	3
48	9
49	166
50	17
51	68
52	8
53	8
54	3
55	7
56	5
57	5
58	2
59	2
60	2
61	61
62	11
63	97
64	1
65	1
66	10
67	2
68	1
69	1
70	41
71	1
72	1
73	66
74	1
75	5
76	1
77	1
78	2
79	2
80	8
81	40
82	2
83	8
84	19
85	2
86	2
87	723

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	8
10	7
11	1
12	1
13	2
14	5
15	15
16	10
17	12
18	4
19	39
20	1
21	1
22	1
23	11
24	2
25	1
26	1
27	10
28	1
29	23
30	1
31	5
32	1
33	243
34	2
35	1
36	1
37	1
38	23
39	1
40	34
41	1
42	1
43	1
44	2
45	58
46	1
47	3
48	9
49	166
50	17
51	68
52	8
53	8
54	3
55	7
56	5
57	5
58	2
59	2
60	2
61	61
62	11
63	97
64	1
65	1
66	10
67	2
68	1
69	1
70	41
71	1
72	1
73	66
74	1
75	5
76	1
77	1
78	2
79	2
80	8
81	40
82	2
83	8
84	19
85	2
86	2
87	723