A350230 - cp's OEIS frontend

A350230 Numbers m such that for all factorizations m=ab with positive integers (a, b), ab+a+b is a prime.

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	11
7	14
8	15
9	21
10	23
11	26
12	29
13	30
14	33
15	35
16	41
17	51
18	53
19	65
20	74
21	83
22	86
23	89
24	111
25	113
26	131
27	141
28	155
29	158
30	173
31	179
32	186
33	191
34	194
35	209
36	215
37	221
38	230
39	231
40	233
41	239
42	251
43	254
44	278
45	281
46	293
47	321
48	323
49	326
50	329
51	341
52	345
53	359
54	371
55	398
56	413
57	419
58	426

[1, 2, 3, 5, 6, 11, 14, 15, 21, 23, 26, 29, 30, 33, 35, 41, 51, 53, 65, 74, 83, 86, 89, 111, 113, 131, 141, 155, 158, 173, 179, 186, 191, 194, 209, 215, 221, 230, 231, 233, 239, 251, 254, 278, 281, 293, 321, 323, 326, 329, 341, 345, 359, 371, 398, 413, 419, 426]

cp's OEIS Frontend

A350230 Numbers m such that for all factorizations m=ab with positive integers (a, b), ab+a+b is a prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	11
7	14
8	15
9	21
10	23
11	26
12	29
13	30
14	33
15	35
16	41
17	51
18	53
19	65
20	74
21	83
22	86
23	89
24	111
25	113
26	131
27	141
28	155
29	158
30	173
31	179
32	186
33	191
34	194
35	209
36	215
37	221
38	230
39	231
40	233
41	239
42	251
43	254
44	278
45	281
46	293
47	321
48	323
49	326
50	329
51	341
52	345
53	359
54	371
55	398
56	413
57	419
58	426

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	11
7	14
8	15
9	21
10	23
11	26
12	29
13	30
14	33
15	35
16	41
17	51
18	53
19	65
20	74
21	83
22	86
23	89
24	111
25	113
26	131
27	141
28	155
29	158
30	173
31	179
32	186
33	191
34	194
35	209
36	215
37	221
38	230
39	231
40	233
41	239
42	251
43	254
44	278
45	281
46	293
47	321
48	323
49	326
50	329
51	341
52	345
53	359
54	371
55	398
56	413
57	419
58	426

cp's OEIS Frontend

A350230 Numbers m such that for all factorizations m=a*b with positive integers (a, b), a*b+a+b is a prime.

Table of values

List of values

A350230 Numbers m such that for all factorizations m=ab with positive integers (a, b), ab+a+b is a prime.

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	11
7	14
8	15
9	21
10	23
11	26
12	29
13	30
14	33
15	35
16	41
17	51
18	53
19	65
20	74
21	83
22	86
23	89
24	111
25	113
26	131
27	141
28	155
29	158
30	173
31	179
32	186
33	191
34	194
35	209
36	215
37	221
38	230
39	231
40	233
41	239
42	251
43	254
44	278
45	281
46	293
47	321
48	323
49	326
50	329
51	341
52	345
53	359
54	371
55	398
56	413
57	419
58	426