A099191 - cp's OEIS frontend

A099191 Smallest prime p such that p+n is twice its reversal, or 0 if impossible.

n	a(n)
1	73
2	2
3	3
4	0
5	5
6	0
7	7
8	0
9	0
10	0
11	11
12	0
13	211
14	0
15	0
16	0
17	53
18	0
19	613
20	0
21	0
22	0
23	0
24	0
25	43
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	23
42	0
43	241
44	0
45	0
46	0
47	0
48	0
49	13
50	0
51	0
52	0
53	251
54	0
55	0
56	0
57	0
58	0
59	653
60	0
61	97
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	271
74	0
75	0
76	0
77	0
78	0
79	673
80	0
81	0
82	0
83	281
84	0
85	67
86	0
87	0
88	0
89	683
90	0
91	0
92	0
93	0

[73, 2, 3, 0, 5, 0, 7, 0, 0, 0, 11, 0, 211, 0, 0, 0, 53, 0, 613, 0, 0, 0, 0, 0, 43, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 23, 0, 241, 0, 0, 0, 0, 0, 13, 0, 0, 0, 251, 0, 0, 0, 0, 0, 653, 0, 97, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 271, 0, 0, 0, 0, 0, 673, 0, 0, 0, 281, 0, 67, 0, 0, 0, 683, 0, 0, 0, 0]

cp's OEIS Frontend

A099191 Smallest prime p such that p+n is twice its reversal, or 0 if impossible.

Table of values

List of values

n	a(n)
1	73
2	2
3	3
4	0
5	5
6	0
7	7
8	0
9	0
10	0
11	11
12	0
13	211
14	0
15	0
16	0
17	53
18	0
19	613
20	0
21	0
22	0
23	0
24	0
25	43
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	23
42	0
43	241
44	0
45	0
46	0
47	0
48	0
49	13
50	0
51	0
52	0
53	251
54	0
55	0
56	0
57	0
58	0
59	653
60	0
61	97
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	271
74	0
75	0
76	0
77	0
78	0
79	673
80	0
81	0
82	0
83	281
84	0
85	67
86	0
87	0
88	0
89	683
90	0
91	0
92	0
93	0

n	a(n)
1	73
2	2
3	3
4	0
5	5
6	0
7	7
8	0
9	0
10	0
11	11
12	0
13	211
14	0
15	0
16	0
17	53
18	0
19	613
20	0
21	0
22	0
23	0
24	0
25	43
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	23
42	0
43	241
44	0
45	0
46	0
47	0
48	0
49	13
50	0
51	0
52	0
53	251
54	0
55	0
56	0
57	0
58	0
59	653
60	0
61	97
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	271
74	0
75	0
76	0
77	0
78	0
79	673
80	0
81	0
82	0
83	281
84	0
85	67
86	0
87	0
88	0
89	683
90	0
91	0
92	0
93	0

n	a(n)
1	73
2	2
3	3
4	0
5	5
6	0
7	7
8	0
9	0
10	0
11	11
12	0
13	211
14	0
15	0
16	0
17	53
18	0
19	613
20	0
21	0
22	0
23	0
24	0
25	43
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	0
37	0
38	0
39	0
40	0
41	23
42	0
43	241
44	0
45	0
46	0
47	0
48	0
49	13
50	0
51	0
52	0
53	251
54	0
55	0
56	0
57	0
58	0
59	653
60	0
61	97
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	271
74	0
75	0
76	0
77	0
78	0
79	673
80	0
81	0
82	0
83	281
84	0
85	67
86	0
87	0
88	0
89	683
90	0
91	0
92	0
93	0