A107771 - cp's OEIS frontend

A107771 Numbers n such that 2n + 5 and 5n + 2 are primes.

n	a(n)
1	0
2	1
3	3
4	7
5	9
6	13
7	19
8	21
9	27
10	31
11	33
12	39
13	51
14	61
15	63
16	67
17	73
18	79
19	93
20	97
21	109
22	111
23	117
24	123
25	129
26	151
27	171
28	177
29	181
30	187
31	189
32	217
33	219
34	237
35	243
36	247
37	259
38	297
39	313
40	319
41	321
42	327
43	339
44	357
45	369
46	373
47	403
48	417
49	427
50	441
51	453
52	457
53	471
54	483
55	489
56	493
57	523
58	529

[0, 1, 3, 7, 9, 13, 19, 21, 27, 31, 33, 39, 51, 61, 63, 67, 73, 79, 93, 97, 109, 111, 117, 123, 129, 151, 171, 177, 181, 187, 189, 217, 219, 237, 243, 247, 259, 297, 313, 319, 321, 327, 339, 357, 369, 373, 403, 417, 427, 441, 453, 457, 471, 483, 489, 493, 523, 529]

cp's OEIS Frontend

A107771 Numbers n such that 2n + 5 and 5n + 2 are primes.

Table of values

List of values

n	a(n)
1	0
2	1
3	3
4	7
5	9
6	13
7	19
8	21
9	27
10	31
11	33
12	39
13	51
14	61
15	63
16	67
17	73
18	79
19	93
20	97
21	109
22	111
23	117
24	123
25	129
26	151
27	171
28	177
29	181
30	187
31	189
32	217
33	219
34	237
35	243
36	247
37	259
38	297
39	313
40	319
41	321
42	327
43	339
44	357
45	369
46	373
47	403
48	417
49	427
50	441
51	453
52	457
53	471
54	483
55	489
56	493
57	523
58	529

n	a(n)
1	0
2	1
3	3
4	7
5	9
6	13
7	19
8	21
9	27
10	31
11	33
12	39
13	51
14	61
15	63
16	67
17	73
18	79
19	93
20	97
21	109
22	111
23	117
24	123
25	129
26	151
27	171
28	177
29	181
30	187
31	189
32	217
33	219
34	237
35	243
36	247
37	259
38	297
39	313
40	319
41	321
42	327
43	339
44	357
45	369
46	373
47	403
48	417
49	427
50	441
51	453
52	457
53	471
54	483
55	489
56	493
57	523
58	529

cp's OEIS Frontend

A107771 Numbers n such that 2*n + 5 and 5*n + 2 are primes.

Table of values

List of values

A107771 Numbers n such that 2n + 5 and 5n + 2 are primes.

n	a(n)
1	0
2	1
3	3
4	7
5	9
6	13
7	19
8	21
9	27
10	31
11	33
12	39
13	51
14	61
15	63
16	67
17	73
18	79
19	93
20	97
21	109
22	111
23	117
24	123
25	129
26	151
27	171
28	177
29	181
30	187
31	189
32	217
33	219
34	237
35	243
36	247
37	259
38	297
39	313
40	319
41	321
42	327
43	339
44	357
45	369
46	373
47	403
48	417
49	427
50	441
51	453
52	457
53	471
54	483
55	489
56	493
57	523
58	529