A124665 - cp's OEIS frontend

A124665 Numbers that cannot be either prefixed or followed by one digit to form a prime.

n	a(n)
1	20
2	32
3	62
4	84
5	114
6	126
7	134
8	135
9	146
10	150
11	164
12	168
13	176
14	185
15	192
16	196
17	204
18	210
19	218
20	232
21	236
22	240
23	248
24	256
25	258
26	282
27	294
28	298
29	305
30	314
31	315
32	324
33	326
34	328
35	342
36	348
37	350
38	356
39	366
40	368
41	374
42	375
43	378
44	395
45	406
46	408
47	410
48	414
49	416
50	418

[20, 32, 62, 84, 114, 126, 134, 135, 146, 150, 164, 168, 176, 185, 192, 196, 204, 210, 218, 232, 236, 240, 248, 256, 258, 282, 294, 298, 305, 314, 315, 324, 326, 328, 342, 348, 350, 356, 366, 368, 374, 375, 378, 395, 406, 408, 410, 414, 416, 418]

cp's OEIS Frontend

A124665 Numbers that cannot be either prefixed or followed by one digit to form a prime.

Table of values

List of values

n	a(n)
1	20
2	32
3	62
4	84
5	114
6	126
7	134
8	135
9	146
10	150
11	164
12	168
13	176
14	185
15	192
16	196
17	204
18	210
19	218
20	232
21	236
22	240
23	248
24	256
25	258
26	282
27	294
28	298
29	305
30	314
31	315
32	324
33	326
34	328
35	342
36	348
37	350
38	356
39	366
40	368
41	374
42	375
43	378
44	395
45	406
46	408
47	410
48	414
49	416
50	418

n	a(n)
1	20
2	32
3	62
4	84
5	114
6	126
7	134
8	135
9	146
10	150
11	164
12	168
13	176
14	185
15	192
16	196
17	204
18	210
19	218
20	232
21	236
22	240
23	248
24	256
25	258
26	282
27	294
28	298
29	305
30	314
31	315
32	324
33	326
34	328
35	342
36	348
37	350
38	356
39	366
40	368
41	374
42	375
43	378
44	395
45	406
46	408
47	410
48	414
49	416
50	418

n	a(n)
1	20
2	32
3	62
4	84
5	114
6	126
7	134
8	135
9	146
10	150
11	164
12	168
13	176
14	185
15	192
16	196
17	204
18	210
19	218
20	232
21	236
22	240
23	248
24	256
25	258
26	282
27	294
28	298
29	305
30	314
31	315
32	324
33	326
34	328
35	342
36	348
37	350
38	356
39	366
40	368
41	374
42	375
43	378
44	395
45	406
46	408
47	410
48	414
49	416
50	418