A268593 - cp's OEIS frontend

A268593 The largest of three distinct primes, a > b > c > 0, such that each of the following four numbers are also prime: a+b+c, a+b-c, a-b+c, a-b-c, regardless of sign.

n	a(n)
1	13
2	17
3	19
4	23
5	37
6	43
7	47
8	53
9	67
10	73
11	83
12	97
13	107
14	113
15	127
16	137
17	139
18	157
19	167
20	181
21	193
22	197
23	199
24	223
25	227
26	229
27	233
28	251
29	263
30	269
31	277
32	283
33	317
34	337
35	347
36	349
37	373
38	379
39	383
40	397
41	409
42	431
43	433
44	439
45	443
46	461

[13, 17, 19, 23, 37, 43, 47, 53, 67, 73, 83, 97, 107, 113, 127, 137, 139, 157, 167, 181, 193, 197, 199, 223, 227, 229, 233, 251, 263, 269, 277, 283, 317, 337, 347, 349, 373, 379, 383, 397, 409, 431, 433, 439, 443, 461]

cp's OEIS Frontend

A268593 The largest of three distinct primes, a > b > c > 0, such that each of the following four numbers are also prime: a+b+c, a+b-c, a-b+c, a-b-c, regardless of sign.

Table of values

List of values

n	a(n)
1	13
2	17
3	19
4	23
5	37
6	43
7	47
8	53
9	67
10	73
11	83
12	97
13	107
14	113
15	127
16	137
17	139
18	157
19	167
20	181
21	193
22	197
23	199
24	223
25	227
26	229
27	233
28	251
29	263
30	269
31	277
32	283
33	317
34	337
35	347
36	349
37	373
38	379
39	383
40	397
41	409
42	431
43	433
44	439
45	443
46	461

n	a(n)
1	13
2	17
3	19
4	23
5	37
6	43
7	47
8	53
9	67
10	73
11	83
12	97
13	107
14	113
15	127
16	137
17	139
18	157
19	167
20	181
21	193
22	197
23	199
24	223
25	227
26	229
27	233
28	251
29	263
30	269
31	277
32	283
33	317
34	337
35	347
36	349
37	373
38	379
39	383
40	397
41	409
42	431
43	433
44	439
45	443
46	461

n	a(n)
1	13
2	17
3	19
4	23
5	37
6	43
7	47
8	53
9	67
10	73
11	83
12	97
13	107
14	113
15	127
16	137
17	139
18	157
19	167
20	181
21	193
22	197
23	199
24	223
25	227
26	229
27	233
28	251
29	263
30	269
31	277
32	283
33	317
34	337
35	347
36	349
37	373
38	379
39	383
40	397
41	409
42	431
43	433
44	439
45	443
46	461